Tuesday, May 27, 2014

Grandstream GXP2000 #7 - binwalk entropy




$ binwalk -E -J gxp2000a.bin

DECIMAL       HEXADECIMAL     ENTROPY
--------------------------------------
0             0x0             0.475153
1024          0x400           0.821094
2048          0x800           0.319332
3072          0xC00           0.268972
4096          0x1000          0.924530
5120          0x1400          0.823764
6144          0x1800          0.880835
7168          0x1C00          0.915349
8192          0x2000          0.931679
9216          0x2400          0.931900
10240         0x2800          0.888536
11264         0x2C00          0.285033
12288         0x3000          0.000000
13312         0x3400          0.000000
14336         0x3800          0.000000
15360         0x3C00          0.000000
16384         0x4000          0.000000
17408         0x4400          0.000000
18432         0x4800          0.006982
19456         0x4C00          0.000000
20480         0x5000          0.000000
21504         0x5400          0.000000
22528         0x5800          0.000000
23552         0x5C00          0.000000
24576         0x6000          0.596231
25600         0x6400          0.929038
26624         0x6800          0.764878
27648         0x6C00          0.827305
28672         0x7000          0.867613
29696         0x7400          0.861999
30720         0x7800          0.875243
31744         0x7C00          0.888957
32768         0x8000          0.753247
33792         0x8400          0.791304
34816         0x8800          0.000000
35840         0x8C00          0.000000
36864         0x9000          0.000000
37888         0x9400          0.000000
38912         0x9800          0.285179
39936         0x9C00          0.926394
40960         0xA000          1.000000
41984         0xA400          1.000000
43008         0xA800          1.000000
44032         0xAC00          0.493528
45056         0xB000          0.924574
46080         0xB400          1.000000
47104         0xB800          1.000000
48128         0xBC00          1.000000
49152         0xC000          0.271866
50176         0xC400          0.000000
51200         0xC800          0.151534
52224         0xCC00          0.000000
53248         0xD000          0.000000
54272         0xD400          0.000000
55296         0xD800          0.000000
56320         0xDC00          0.000000
57344         0xE000          0.000000
58368         0xE400          0.000000
59392         0xE800          0.000000
60416         0xEC00          0.198430
61440         0xF000          0.000000
62464         0xF400          0.006982
63488         0xF800          0.000000
64512         0xFC00          0.000000
65536         0x10000         0.000000
66560         0x10400         0.000000
67584         0x10800         0.000000
68608         0x10C00         0.000000
69632         0x11000         0.000000
70656         0x11400         0.000000
71680         0x11800         0.000000
72704         0x11C00         0.000000
73728         0x12000         0.000000
74752         0x12400         0.000000
75776         0x12800         0.000000
76800         0x12C00         0.000000
77824         0x13000         0.000000
78848         0x13400         0.000000
79872         0x13800         0.000000
80896         0x13C00         0.000000
81920         0x14000         0.000000
82944         0x14400         0.000000
83968         0x14800         0.000000
84992         0x14C00         0.000000
86016         0x15000         0.000000
87040         0x15400         0.000000
88064         0x15800         0.000000
89088         0x15C00         0.000000
90112         0x16000         0.000000
91136         0x16400         0.000000
92160         0x16800         0.000000
93184         0x16C00         0.000000
94208         0x17000         0.000000
95232         0x17400         0.000000
96256         0x17800         0.000000
97280         0x17C00         0.000000
98304         0x18000         0.000000
99328         0x18400         0.000000
100352        0x18800         0.000000
101376        0x18C00         0.000000
102400        0x19000         0.000000
103424        0x19400         0.000000
104448        0x19800         0.000000
105472        0x19C00         0.000000
106496        0x1A000         0.000000
107520        0x1A400         0.000000
108544        0x1A800         0.000000
109568        0x1AC00         0.000000
110592        0x1B000         0.000000
111616        0x1B400         0.000000
112640        0x1B800         0.000000
113664        0x1BC00         0.000000
114688        0x1C000         0.000000
115712        0x1C400         0.000000
116736        0x1C800         0.000000
117760        0x1CC00         0.000000
118784        0x1D000         0.461947
119808        0x1D400         0.758984
120832        0x1D800         0.678596
121856        0x1DC00         0.675280
122880        0x1E000         0.764681
123904        0x1E400         0.767533
124928        0x1E800         0.794114
125952        0x1EC00         0.784991
126976        0x1F000         0.720418
128000        0x1F400         0.706725
129024        0x1F800         0.693209
130048        0x1FC00         0.724930
131072        0x20000         0.732938
132096        0x20400         0.768039
133120        0x20800         0.765269
134144        0x20C00         0.752308
135168        0x21000         0.766379
136192        0x21400         0.747397
137216        0x21800         0.735758
138240        0x21C00         0.710476
139264        0x22000         0.680652
140288        0x22400         0.729258
141312        0x22800         0.737348
142336        0x22C00         0.693594
143360        0x23000         0.707028
144384        0x23400         0.787051
145408        0x23800         0.704007
146432        0x23C00         0.740545
147456        0x24000         0.734056
148480        0x24400         0.790001
149504        0x24800         0.752606
150528        0x24C00         0.711433
151552        0x25000         0.696808
152576        0x25400         0.679201
153600        0x25800         0.715734
154624        0x25C00         0.756376
155648        0x26000         0.761173
156672        0x26400         0.704160
157696        0x26800         0.781411
158720        0x26C00         0.743769
159744        0x27000         0.726809
160768        0x27400         0.703055
161792        0x27800         0.712858
162816        0x27C00         0.773848
163840        0x28000         0.730626
164864        0x28400         0.739188
165888        0x28800         0.718124
166912        0x28C00         0.769265
167936        0x29000         0.773269
168960        0x29400         0.746314
169984        0x29800         0.777995
171008        0x29C00         0.746231
172032        0x2A000         0.780670
173056        0x2A400         0.755197
174080        0x2A800         0.747950
175104        0x2AC00         0.754644
176128        0x2B000         0.753684
177152        0x2B400         0.776674
178176        0x2B800         0.726341
179200        0x2BC00         0.674211
180224        0x2C000         0.753631
181248        0x2C400         0.796315
182272        0x2C800         0.830593
183296        0x2CC00         0.835992
184320        0x2D000         0.812131
185344        0x2D400         0.809326
186368        0x2D800         0.833316
187392        0x2DC00         0.795414
188416        0x2E000         0.814232
189440        0x2E400         0.828784
190464        0x2E800         0.852431
191488        0x2EC00         0.854725
192512        0x2F000         0.864997
193536        0x2F400         0.864900
194560        0x2F800         0.874188
195584        0x2FC00         0.821629
196608        0x30000         0.780151
197632        0x30400         0.807268
198656        0x30800         0.830458
199680        0x30C00         0.867006
200704        0x31000         0.792080
201728        0x31400         0.767098
202752        0x31800         0.828479
203776        0x31C00         0.831309
204800        0x32000         0.865491
205824        0x32400         0.833669
206848        0x32800         0.848295
207872        0x32C00         0.845267
208896        0x33000         0.856817
209920        0x33400         0.847979
210944        0x33800         0.858086
211968        0x33C00         0.852645
212992        0x34000         0.839578
214016        0x34400         0.817247
215040        0x34800         0.690123
216064        0x34C00         0.781248
217088        0x35000         0.761978
218112        0x35400         0.758617
219136        0x35800         0.745075
220160        0x35C00         0.761548
221184        0x36000         0.761495
222208        0x36400         0.765842
223232        0x36800         0.773157
224256        0x36C00         0.784291
225280        0x37000         0.775237
226304        0x37400         0.769345
227328        0x37800         0.729590
228352        0x37C00         0.643508
229376        0x38000         0.780143
230400        0x38400         0.664217
231424        0x38800         0.765506
232448        0x38C00         0.757802
233472        0x39000         0.700933
234496        0x39400         0.746846
235520        0x39800         0.792072
236544        0x39C00         0.751145
237568        0x3A000         0.756224
238592        0x3A400         0.789903
239616        0x3A800         0.751897
240640        0x3AC00         0.753302
241664        0x3B000         0.804938
242688        0x3B400         0.789132
243712        0x3B800         0.782137
244736        0x3BC00         0.731674
245760        0x3C000         0.760025
246784        0x3C400         0.802632
247808        0x3C800         0.795465
248832        0x3CC00         0.817489
249856        0x3D000         0.811683
250880        0x3D400         0.803246
251904        0x3D800         0.805993
252928        0x3DC00         0.777593
253952        0x3E000         0.735120
254976        0x3E400         0.731930
256000        0x3E800         0.701876
257024        0x3EC00         0.679874
258048        0x3F000         0.705230
259072        0x3F400         0.753096
260096        0x3F800         0.716182
261120        0x3FC00         0.704835
262144        0x40000         0.688251
263168        0x40400         0.676856
264192        0x40800         0.816445
265216        0x40C00         0.833774
266240        0x41000         0.821819
267264        0x41400         0.841769
268288        0x41800         0.819479
269312        0x41C00         0.855875
270336        0x42000         0.848995
271360        0x42400         0.865524
272384        0x42800         0.812136
273408        0x42C00         0.850281
274432        0x43000         0.802251
275456        0x43400         0.818559
276480        0x43800         0.850888
277504        0x43C00         0.789847
278528        0x44000         0.789507
279552        0x44400         0.816637
280576        0x44800         0.838252
281600        0x44C00         0.850340
282624        0x45000         0.760908
283648        0x45400         0.833616
284672        0x45800         0.830295
285696        0x45C00         0.819297
286720        0x46000         0.808406
287744        0x46400         0.825272
288768        0x46800         0.828607
289792        0x46C00         0.824264
290816        0x47000         0.810392
291840        0x47400         0.844302
292864        0x47800         0.837156
293888        0x47C00         0.825017
294912        0x48000         0.802793
295936        0x48400         0.776696
296960        0x48800         0.813969
297984        0x48C00         0.836273
299008        0x49000         0.823951
300032        0x49400         0.838703
301056        0x49800         0.820456
302080        0x49C00         0.808904
303104        0x4A000         0.698188
304128        0x4A400         0.725997
305152        0x4A800         0.633573
306176        0x4AC00         0.642397
307200        0x4B000         0.642033
308224        0x4B400         0.640656
309248        0x4B800         0.699928
310272        0x4BC00         0.697099
311296        0x4C000         0.731070
312320        0x4C400         0.779102
313344        0x4C800         0.681866
314368        0x4CC00         0.715107
315392        0x4D000         0.771134
316416        0x4D400         0.714063
317440        0x4D800         0.766121
318464        0x4DC00         0.776610
319488        0x4E000         0.648899
320512        0x4E400         0.801421
321536        0x4E800         0.766647
322560        0x4EC00         0.779060
323584        0x4F000         0.751828
324608        0x4F400         0.753857
325632        0x4F800         0.735073
326656        0x4FC00         0.785494
327680        0x50000         0.776284
328704        0x50400         0.778762
329728        0x50800         0.774395
330752        0x50C00         0.760029
331776        0x51000         0.770649
332800        0x51400         0.834452
333824        0x51800         0.822171
334848        0x51C00         0.803453
335872        0x52000         0.807664
336896        0x52400         0.799244
337920        0x52800         0.799925
338944        0x52C00         0.763608
339968        0x53000         0.778760
340992        0x53400         0.794458
342016        0x53800         0.790145
343040        0x53C00         0.807942
344064        0x54000         0.815664
345088        0x54400         0.797429
346112        0x54800         0.770278
347136        0x54C00         0.754585
348160        0x55000         0.686871
349184        0x55400         0.754821
350208        0x55800         0.797762
351232        0x55C00         0.836947
352256        0x56000         0.831685
353280        0x56400         0.840068
354304        0x56800         0.826322
355328        0x56C00         0.825228
356352        0x57000         0.811495
357376        0x57400         0.812487
358400        0x57800         0.831455
359424        0x57C00         0.738156
360448        0x58000         0.635778
361472        0x58400         0.716255
362496        0x58800         0.752792
363520        0x58C00         0.638961
364544        0x59000         0.757221
365568        0x59400         0.722960
366592        0x59800         0.746374
367616        0x59C00         0.708369
368640        0x5A000         0.776746
369664        0x5A400         0.787954
370688        0x5A800         0.801332
371712        0x5AC00         0.735503
372736        0x5B000         0.818865
373760        0x5B400         0.814884
374784        0x5B800         0.783527
375808        0x5BC00         0.808977
376832        0x5C000         0.794919
377856        0x5C400         0.799951
378880        0x5C800         0.800864
379904        0x5CC00         0.782520
380928        0x5D000         0.801671
381952        0x5D400         0.817199
382976        0x5D800         0.711259
384000        0x5DC00         0.746111
385024        0x5E000         0.754285
386048        0x5E400         0.770855
387072        0x5E800         0.778537
388096        0x5EC00         0.597322
389120        0x5F000         0.585963
390144        0x5F400         0.584146
391168        0x5F800         0.615815
392192        0x5FC00         0.847832
393216        0x60000         0.851644
394240        0x60400         0.845534
395264        0x60800         0.816281
396288        0x60C00         0.836443
397312        0x61000         0.831440
398336        0x61400         0.834605
399360        0x61800         0.827631
400384        0x61C00         0.832021
401408        0x62000         0.838481
402432        0x62400         0.802310
403456        0x62800         0.832694
404480        0x62C00         0.803359
405504        0x63000         0.770315
406528        0x63400         0.803753
407552        0x63800         0.768224
408576        0x63C00         0.745804
409600        0x64000         0.724812
410624        0x64400         0.802275
411648        0x64800         0.806684
412672        0x64C00         0.815180
413696        0x65000         0.830642
414720        0x65400         0.815303
415744        0x65800         0.778592
416768        0x65C00         0.797224
417792        0x66000         0.761680
418816        0x66400         0.796346
419840        0x66800         0.766610
420864        0x66C00         0.804647
421888        0x67000         0.791858
422912        0x67400         0.788256
423936        0x67800         0.766490
424960        0x67C00         0.801590
425984        0x68000         0.801070
427008        0x68400         0.671570
428032        0x68800         0.811791
429056        0x68C00         0.800000
430080        0x69000         0.812529
431104        0x69400         0.774240
432128        0x69800         0.815497
433152        0x69C00         0.819128
434176        0x6A000         0.763545
435200        0x6A400         0.827267
436224        0x6A800         0.808704
437248        0x6AC00         0.773898
438272        0x6B000         0.791890
439296        0x6B400         0.828318
440320        0x6B800         0.807197
441344        0x6BC00         0.827836
442368        0x6C000         0.813091
443392        0x6C400         0.781173
444416        0x6C800         0.765070
445440        0x6CC00         0.754108
446464        0x6D000         0.756391
447488        0x6D400         0.805324
448512        0x6D800         0.830927
449536        0x6DC00         0.815285
450560        0x6E000         0.798541
451584        0x6E400         0.810496
452608        0x6E800         0.809308
453632        0x6EC00         0.807628
454656        0x6F000         0.838541
455680        0x6F400         0.815576
456704        0x6F800         0.818083
457728        0x6FC00         0.820838
458752        0x70000         0.797217
459776        0x70400         0.804273
460800        0x70800         0.768159
461824        0x70C00         0.788582
462848        0x71000         0.820005
463872        0x71400         0.817823
464896        0x71800         0.816676
465920        0x71C00         0.815635
466944        0x72000         0.814230
467968        0x72400         0.819182
468992        0x72800         0.819427
470016        0x72C00         0.794157
471040        0x73000         0.762816
472064        0x73400         0.770438
473088        0x73800         0.622489
474112        0x73C00         0.752304
475136        0x74000         0.816251
476160        0x74400         0.810663
477184        0x74800         0.812298
478208        0x74C00         0.798391
479232        0x75000         0.804491
480256        0x75400         0.798776
481280        0x75800         0.734635
482304        0x75C00         0.783700
483328        0x76000         0.805559
484352        0x76400         0.819376
485376        0x76800         0.828959
486400        0x76C00         0.783028
487424        0x77000         0.817434
488448        0x77400         0.752148
489472        0x77800         0.764395
490496        0x77C00         0.817054
491520        0x78000         0.826241
492544        0x78400         0.807180
493568        0x78800         0.754044
494592        0x78C00         0.803384
495616        0x79000         0.816272
496640        0x79400         0.768599
497664        0x79800         0.709764
498688        0x79C00         0.782516
499712        0x7A000         0.825682
500736        0x7A400         0.805564
501760        0x7A800         0.802769
502784        0x7AC00         0.822258
503808        0x7B000         0.824581
504832        0x7B400         0.785218
505856        0x7B800         0.758659
506880        0x7BC00         0.785827
507904        0x7C000         0.807919
508928        0x7C400         0.814886
509952        0x7C800         0.847624
510976        0x7CC00         0.829627
512000        0x7D000         0.815589
513024        0x7D400         0.804806
514048        0x7D800         0.804587
515072        0x7DC00         0.831096
516096        0x7E000         0.782101
517120        0x7E400         0.802444
518144        0x7E800         0.825167
519168        0x7EC00         0.803191
520192        0x7F000         0.841323
521216        0x7F400         0.802550
522240        0x7F800         0.785345
523264        0x7FC00         0.815334
524288        0x80000         0.806209
525312        0x80400         0.801164
526336        0x80800         0.827939
527360        0x80C00         0.824086
528384        0x81000         0.820550
529408        0x81400         0.807321
530432        0x81800         0.777963
531456        0x81C00         0.807317
532480        0x82000         0.801653
533504        0x82400         0.823348
534528        0x82800         0.765171
535552        0x82C00         0.813299
536576        0x83000         0.847975
537600        0x83400         0.834364
538624        0x83800         0.849537
539648        0x83C00         0.836052
540672        0x84000         0.762200
541696        0x84400         0.739751
542720        0x84800         0.740222
543744        0x84C00         0.727261
544768        0x85000         0.779468
545792        0x85400         0.771762
546816        0x85800         0.737290
547840        0x85C00         0.788413
548864        0x86000         0.826341
549888        0x86400         0.793581
550912        0x86800         0.786333
551936        0x86C00         0.809295
552960        0x87000         0.808235
553984        0x87400         0.827552
555008        0x87800         0.818851
556032        0x87C00         0.051615
557056        0x88000         0.000000
558080        0x88400         0.000000
559104        0x88800         0.000000
560128        0x88C00         0.000000
561152        0x89000         0.000000
562176        0x89400         0.000000
563200        0x89800         0.000000
564224        0x89C00         0.000000
565248        0x8A000         0.000000
566272        0x8A400         0.000000
567296        0x8A800         0.000000
568320        0x8AC00         0.000000
569344        0x8B000         0.000000
570368        0x8B400         0.000000
571392        0x8B800         0.000000
572416        0x8BC00         0.000000
573440        0x8C000         0.000000
574464        0x8C400         0.000000
575488        0x8C800         0.000000
576512        0x8CC00         0.000000
577536        0x8D000         0.000000
578560        0x8D400         0.000000
579584        0x8D800         0.000000
580608        0x8DC00         0.000000
581632        0x8E000         0.000000
582656        0x8E400         0.000000
583680        0x8E800         0.000000
584704        0x8EC00         0.000000
585728        0x8F000         0.000000
586752        0x8F400         0.000000
587776        0x8F800         0.000000
588800        0x8FC00         0.000000
589824        0x90000         0.000000
590848        0x90400         0.000000
591872        0x90800         0.000000
592896        0x90C00         0.000000
593920        0x91000         0.000000
594944        0x91400         0.000000
595968        0x91800         0.000000
596992        0x91C00         0.000000
598016        0x92000         0.000000
599040        0x92400         0.000000
600064        0x92800         0.000000
601088        0x92C00         0.000000
602112        0x93000         0.000000
603136        0x93400         0.000000
604160        0x93800         0.000000
605184        0x93C00         0.000000
606208        0x94000         0.000000
607232        0x94400         0.000000
608256        0x94800         0.000000
609280        0x94C00         0.000000
610304        0x95000         0.000000
611328        0x95400         0.000000
612352        0x95800         0.000000
613376        0x95C00         0.000000
614400        0x96000         0.000000
615424        0x96400         0.000000
616448        0x96800         0.000000
617472        0x96C00         0.000000
618496        0x97000         0.000000
619520        0x97400         0.000000
620544        0x97800         0.000000
621568        0x97C00         0.000000
622592        0x98000         0.000000
623616        0x98400         0.000000
624640        0x98800         0.000000
625664        0x98C00         0.000000
626688        0x99000         0.000000
627712        0x99400         0.000000
628736        0x99800         0.000000
629760        0x99C00         0.000000
630784        0x9A000         0.000000
631808        0x9A400         0.000000
632832        0x9A800         0.000000
633856        0x9AC00         0.000000
634880        0x9B000         0.000000
635904        0x9B400         0.000000
636928        0x9B800         0.000000
637952        0x9BC00         0.000000
638976        0x9C000         0.000000
640000        0x9C400         0.000000
641024        0x9C800         0.000000
642048        0x9CC00         0.000000
643072        0x9D000         0.000000
644096        0x9D400         0.000000
645120        0x9D800         0.000000
646144        0x9DC00         0.000000
647168        0x9E000         0.000000
648192        0x9E400         0.000000
649216        0x9E800         0.000000
650240        0x9EC00         0.000000
651264        0x9F000         0.000000
652288        0x9F400         0.000000
653312        0x9F800         0.155551
654336        0x9FC00         0.190538
655360        0xA0000         0.225330
656384        0xA0400         0.256716
657408        0xA0800         0.287558
658432        0xA0C00         0.261676
659456        0xA1000         0.224791
660480        0xA1400         0.198768
661504        0xA1800         0.321119
662528        0xA1C00         0.375795
663552        0xA2000         0.218683
664576        0xA2400         0.201503
665600        0xA2800         0.245239
666624        0xA2C00         0.265897
667648        0xA3000         0.250401
668672        0xA3400         0.185423
669696        0xA3800         0.202379
670720        0xA3C00         0.338599
671744        0xA4000         0.588352
672768        0xA4400         0.635177
673792        0xA4800         0.628214
674816        0xA4C00         0.657805
675840        0xA5000         0.509288
676864        0xA5400         0.265422
677888        0xA5800         0.290808
678912        0xA5C00         0.301271
679936        0xA6000         0.416232
680960        0xA6400         0.275226
681984        0xA6800         0.294323
683008        0xA6C00         0.287529
684032        0xA7000         0.415738
685056        0xA7400         0.240078
686080        0xA7800         0.267908
687104        0xA7C00         0.275492
688128        0xA8000         0.415900
689152        0xA8400         0.231526
690176        0xA8800         0.289669
691200        0xA8C00         0.315309
692224        0xA9000         0.405689
693248        0xA9400         0.242087
694272        0xA9800         0.306147
695296        0xA9C00         0.358927
696320        0xAA000         0.381619
697344        0xAA400         0.258053
698368        0xAA800         0.236943
699392        0xAAC00         0.398793
700416        0xAB000         0.424419
701440        0xAB400         0.415794
702464        0xAB800         0.396522
703488        0xABC00         0.384064
704512        0xAC000         0.312237
705536        0xAC400         0.358822
706560        0xAC800         0.401062
707584        0xACC00         0.309008
708608        0xAD000         0.331227
709632        0xAD400         0.404963
710656        0xAD800         0.300778
711680        0xADC00         0.274359
712704        0xAE000         0.433924
713728        0xAE400         0.338667
714752        0xAE800         0.392509
715776        0xAEC00         0.389985
716800        0xAF000         0.309959
717824        0xAF400         0.370828
718848        0xAF800         0.354164
719872        0xAFC00         0.293394
720896        0xB0000         0.387099
721920        0xB0400         0.366997
722944        0xB0800         0.454580
723968        0xB0C00         0.574406
724992        0xB1000         0.565800
726016        0xB1400         0.376681
727040        0xB1800         0.657566
728064        0xB1C00         0.521771
729088        0xB2000         0.379907
730112        0xB2400         0.504550
731136        0xB2800         0.564669
732160        0xB2C00         0.578057
733184        0xB3000         0.600159
734208        0xB3400         0.524366
735232        0xB3800         0.504557
736256        0xB3C00         0.536160
737280        0xB4000         0.621352
738304        0xB4400         0.716678
739328        0xB4800         0.746322
740352        0xB4C00         0.736480
741376        0xB5000         0.737251
742400        0xB5400         0.731904
743424        0xB5800         0.727348
744448        0xB5C00         0.727117
745472        0xB6000         0.737836
746496        0xB6400         0.732371
747520        0xB6800         0.730072
748544        0xB6C00         0.742806
749568        0xB7000         0.723461
750592        0xB7400         0.741764
751616        0xB7800         0.725849
752640        0xB7C00         0.741246
753664        0xB8000         0.736361
754688        0xB8400         0.731065
755712        0xB8800         0.731061
756736        0xB8C00         0.718939
757760        0xB9000         0.725202
758784        0xB9400         0.732056
759808        0xB9800         0.733456
760832        0xB9C00         0.723484
761856        0xBA000         0.740717
762880        0xBA400         0.725732
763904        0xBA800         0.722223
764928        0xBAC00         0.733175
765952        0xBB000         0.737907
766976        0xBB400         0.716237
768000        0xBB800         0.732512
769024        0xBBC00         0.724496
770048        0xBC000         0.728006
771072        0xBC400         0.723984
772096        0xBC800         0.724632
773120        0xBCC00         0.735528
774144        0xBD000         0.728602
775168        0xBD400         0.727622
776192        0xBD800         0.725883
777216        0xBDC00         0.736806
778240        0xBE000         0.721160
779264        0xBE400         0.725754
780288        0xBE800         0.737984
781312        0xBEC00         0.725904
782336        0xBF000         0.742158
783360        0xBF400         0.741346
784384        0xBF800         0.715222
785408        0xBFC00         0.735616
786432        0xC0000         0.726613
787456        0xC0400         0.725439
788480        0xC0800         0.717499
789504        0xC0C00         0.715823
790528        0xC1000         0.733552
791552        0xC1400         0.732853
792576        0xC1800         0.732399
793600        0xC1C00         0.723607
794624        0xC2000         0.739743
795648        0xC2400         0.721227
796672        0xC2800         0.724620
797696        0xC2C00         0.740280
798720        0xC3000         0.722370
799744        0xC3400         0.745009
800768        0xC3800         0.461444
801792        0xC3C00         0.817033
802816        0xC4000         0.854091
803840        0xC4400         0.865573
804864        0xC4800         0.834689
805888        0xC4C00         0.860427
806912        0xC5000         0.854423
807936        0xC5400         0.853353
808960        0xC5800         0.819812
809984        0xC5C00         0.707942

Grandstream GXP2000 #6 - binwalk signature scan output

$ binwalk gxp2000a.bin

DECIMAL       HEXADECIMAL     DESCRIPTION
------------------------------------------------------------------------------------------------------------------------------------------------------
675016        0xA4CC8         XML document, version: "1.0"
738084        0xB4324         GIF image data, version "89a", 2 x 20
738139        0xB435B         HTML document header
739075        0xB4703         HTML document header
740632        0xB4D18         HTML document footer
740641        0xB4D21         HTML document header
742124        0xB52EC         HTML document footer
742133        0xB52F5         HTML document header
743303        0xB5787         HTML document header
744536        0xB5C58         HTML document footer
744545        0xB5C61         HTML document header
745489        0xB6011         HTML document footer
745499        0xB601B         HTML document header
746881        0xB6581         HTML document footer
746891        0xB658B         HTML document header
748128        0xB6A60         HTML document footer
748147        0xB6A73         HTML document header
754435        0xB8303         HTML document header
765833        0xBAF89         HTML document footer
765843        0xBAF93         HTML document header
774540        0xBD18C         HTML document footer
774549        0xBD195         HTML document header
783278        0xBF3AE         HTML document footer
783287        0xBF3B7         HTML document header
791997        0xC15BD         HTML document footer
792007        0xC15C7         HTML document header
800773        0xC3805         HTML document footer

Grandstream GXP2000 #5 - signsrch 0.2.2 output

$ signsrch -s /usr/local/etc/signsrch.sig gxp2000a.bin

...

  offset   num  description [bits.endian.size]
  --------------------------------------------
  0000093a 1038 padding used in hashing algorithms (0x80 0 ... 0) [..64]
  00001138 2743 libavcodec celp_math base_cos G729_BITEXACT [16.be.128]
  000012ba 2745 libavcodec celp_math slope_cos G729_BITEXACT [16.be.128]
  000013ba 2805 libavcodec G729 cb_ma_predictor [16.be.160]
  00001686 2747 libavcodec celp_math tab_exp2 G729_BITEXACT [16.be.66]
  000016c8 2749 libavcodec celp_math tab_log2 G729_BITEXACT [16.be.66]
  00001f74 2797 libavcodec G729 cb_lsp_1st [16.be.2560]
  00002974 2799 libavcodec G729 cb_lsp_2nd [16.be.640]
  000061d4 1995 power2 table [16.be.30]
  00006370 3000 libavcodec truespeech ts_230 [16.be.16]
  000067d4 3008 libavcodec truespeech ts_5F2 [16.be.16]
  000099ab 2418 MBC2 [32.be.248&]
  00009cc0 897  Rijndael Te0 (0xc66363a5U) [32.be.1024]
  0000a0c0 899  Rijndael Te1 (0xa5c66363U) [32.be.1024]
  0000a4c0 901  Rijndael Te2 (0x63a5c663U) [32.be.1024]
  0000a8c0 903  Rijndael Te3 (0x6363a5c6U) [32.be.1024]
  0000aff4 2417 MBC2 [32.le.248&]
  0000b0c0 906  Rijndael Td0 (0x51f4a750U) [32.be.1024]
  0000b4c0 908  Rijndael Td1 (0x5051f4a7U) [32.be.1024]
  0000b8c0 910  Rijndael Td2 (0xa75051f4U) [32.be.1024]
  0000bcc0 912  Rijndael Td3 (0xf4a75051U) [32.be.1024]
  0000c0c0 915  Rijndael rcon [32.be.40]
  0000c876 1212 GSM table gsm_H [16.be.22]
  0000c88e 1202 GSM table gsm_A [16.be.16]
  0000c8a0 1204 GSM table gsm_B [16.be.16]
  0000c8b2 1206 GSM table gsm_MIC [16.be.16]
  0000c8c4 1208 GSM table gsm_MAC [16.be.16]
  0000c8c5 1207 GSM table gsm_MAC [16.le.16]
  0000c8d6 1210 GSM table gsm_INVA [16.be.16]
  0000c8f6 1214 GSM table gsm_NRFAC [16.be.16]
  0000c906 1216 GSM table gsm_FAC [16.be.16]

- 31 signatures found in the file in 1 seconds
- done