вижу какое то преобразование slin кодека в alaw кодек. На пире какой кодек стоит? может проблема при преобразовании кодеков возникает. Поставьте для проверки везде alaw и у провайдера тоже должен быть alaw. Если заработает можно тогда договориться на другие сжатые кодеки.(Предположение)
у провайдера
allow=alaw,ulaw
у сипа
allow=alaw,ulaw
Joule*CLI> core show codecs
Disclaimer: this command is for informational purposes only.
It does not indicate anything about your configuration.
ID TYPE NAME FORMAT DESCRIPTION
------------------------------------------------------------------------------------------------
33 image png png (PNG Image)
8 audio g726 g726 (G.726 RFC3551)
6 audio alaw alaw (G.711 a-law)
4 audio g723 g723 (G.723.1)
22 audio speex speex (SpeeX)
23 audio speex speex16 (SpeeX 16khz)
24 audio speex speex32 (SpeeX 32khz)
26 audio g722 g722 (G722)
27 audio siren7 siren7 (ITU G.722.1 (Siren7, licensed from Polycom))
34 video h261 h261 (H.261 video)
35 video h263 h263 (H.263 video)
10 audio adpcm adpcm (Dialogic ADPCM)
38 video h265 h265 (H.265 video)
46 audio silk silk8 (SILK Codec (8 KHz))
47 audio silk silk12 (SILK Codec (12 KHz))
48 audio silk silk16 (SILK Codec (16 KHz))
49 audio silk silk24 (SILK Codec (24 KHz))
30 audio g719 g719 (ITU G.719)
36 video h263p h263p (H.263+ video)
37 video h264 h264 (H.264 video)
21 audio g729 g729 (G.729A)
11 audio slin slin (16 bit Signed Linear PCM)
12 audio slin slin12 (16 bit Signed Linear PCM (12kHz))
13 audio slin slin16 (16 bit Signed Linear PCM (16kHz))
14 audio slin slin24 (16 bit Signed Linear PCM (24kHz))
15 audio slin slin32 (16 bit Signed Linear PCM (32kHz))
16 audio slin slin44 (16 bit Signed Linear PCM (44kHz))
17 audio slin slin48 (16 bit Signed Linear PCM (48kHz))
18 audio slin slin96 (16 bit Signed Linear PCM (96kHz))
19 audio slin slin192 (16 bit Signed Linear PCM (192kHz))
5 audio ulaw ulaw (G.711 u-law)
20 audio lpc10 lpc10 (LPC10)
29 audio testlaw testlaw (G.711 test-law)
45 audio none none (
codec)
44 image t38 t38 (T.38 UDPTL Fax)
1 audio amr amr (AMR)
2 audio amrwb amrwb (AMR-WB)
41 video vp9 vp9 (VP9 video)
40 video vp8 vp8 (VP8 video)
7 audio gsm gsm (GSM)
39 video mpeg4 mpeg4 (MPEG4 video)
25 audio ilbc ilbc (iLBC)
42 text red red (T.140 Realtime Text with redundancy)
43 text t140 t140 (Passthrough T.140 Realtime Text)
31 audio opus opus (Opus Codec)
32 image jpeg jpeg (JPEG image)
9 audio g726aal2 g726aal2 (G.726 AAL2)
3 audio codec2 codec2 (Codec 2)
28 audio siren14 siren14 (ITU G.722.1 Annex C, (Siren14, licensed from Polycom))