> 99% что неправильно отдается PI, лечится прописыванием progress-in на pots пире циски.
> Чтобы убедиться покажите одновременно debug ccsip messages и debug isdn q931
> для одного такого вызова.INVITE sip:0504908886@192.168.0.11:5060 SIP/2.0
Via: SIP/2.0/TCP 192.168.0.100:5060;branch=z9hG4bK3e5465299f0f
From: "Andrey" <sip:5990000@192.168.0.100>;tag=7196~51efeba8-6101-460d-b3ed-ac6d6cab4271-24331986
To: <sip:0504908886@192.168.0.11>
Date: Thu, 04 Jul 2013 11:10:49 GMT
Call-ID: 607ec800-1d515839-932-6400a8c0@192.168.0.100
Supported: timer,resource-priority,replaces
Min-SE: 1800
User-Agent: Cisco-CUCM8.6
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY
CSeq: 101 INVITE
Expires: 180
Allow-Events: presence
Supported: X-cisco-srtp-fallback
Supported: Geolocation
Cisco-Guid: 1618921472-0000065536-0000002354-1677764800
Session-Expires: 1800
P-Asserted-Identity: "Andrey" <sip:5990000@192.168.0.100>
Remote-Party-ID: "Andrey" <sip:5990000@192.168.0.100>;party=calling;screen=yes;privacy=off
Contact: <sip:5990000@192.168.0.100:5060;transport=tcp>
Max-Forwards: 70
Content-Length: 0
Jul 4 11:10:49.276: Sent:
SIP/2.0 100 Trying
Via: SIP/2.0/TCP 192.168.0.100:5060;branch=z9hG4bK3e5465299f0f
From: "Andrey" <sip:5990000@192.168.0.100>;tag=7196~51efeba8-6101-460d-b3ed-ac6d6cab4271-24331986
To: <sip:0504908886@192.168.0.11>;tag=42D656D0-18E9
Date: Thu, 04 Jul 2013 11:10:49 GMT
Call-ID: 607ec800-1d515839-932-6400a8c0@192.168.0.100
Server: Cisco-SIPGateway/IOS-12.x
CSeq: 101 INVITE
Allow-Events: telephone-event
Content-Length: 0
Jul 4 11:10:49.300: ISDN Se4:15 Q931: TX -> SETUP pd = 8 callref = 0x440C
Sending Complete
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98399
Exclusive, Channel 25
Calling Party Number i = 0x2181, '5990000'
Plan:ISDN, Type:National
Called Party Number i = 0xA1, '0504908886'
Plan:ISDN, Type:National
Jul 4 11:10:49.388: ISDN Se4:15 Q931: RX <- ALERTING pd = 8 callref = 0xC40B
Jul 4 11:10:49.400: Sent:
Jul 4 11:10:49.632: ISDN Se4:15 Q931: RX <- CALL_PROC pd = 8 callref = 0xC40C
Channel ID i = 0xA98399
Exclusive, Channel 25
Jul 4 11:10:49.712: ISDN Se4:15 Q931: RX <- PROGRESS pd = 8 callref = 0xC40C
Progress Ind i = 0x8288 - In-band info or appropriate now available
Jul 4 11:10:49.712: ISDN Se4:15 Q931: RX <- PROGRESS pd = 8 callref = 0xC40C
Progress Ind i = 0x8288 - In-band info or appropriate now available
Jul 4 11:10:49.724: ISDN Se4:15 Q931: RX <- ALERTING pd = 8 callref = 0xC40C
Jul 4 11:10:49.728: Sent:
SIP/2.0 183 Session Progress
Via: SIP/2.0/TCP 192.168.0.100:5060;branch=z9hG4bK3e5465299f0f
From: "Andrey" <sip:5990000@192.168.0.100>;tag=7196~51efeba8-6101-460d-b3ed-ac6d6cab4271-24331986
To: <sip:0504908886@192.168.0.11>;tag=42D656D0-18E9
Date: Thu, 04 Jul 2013 11:10:49 GMT
Call-ID: 607ec800-1d515839-932-6400a8c0@192.168.0.100
Server: Cisco-SIPGateway/IOS-12.x
CSeq: 101 INVITE
Allow-Events: telephone-event
Contact: <sip:0504908886@192.168.0.11:5060;transport=tcp>
Content-Disposition: session;handling=required
Content-Type: application/sdp
Content-Length: 294
v=0
o=CiscoSystemsSIP-GW-UserAgent 8669 3154 IN IP4 192.168.0.11
s=SIP Call
c=IN IP4 192.168.0.11
t=0 0
m=audio 16656 RTP/AVP 18 101 19
c=IN IP4 192.168.0.11
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=rtpmap:19 CN/8000
a=ptime:20
Jul 4 11:10:49.756: Sent:
SIP/2.0 180 Ringing
Via: SIP/2.0/TCP 192.168.0.100:5060;branch=z9hG4bK3e5465299f0f
From: "Andrey" <sip:5990000@192.168.0.100>;tag=7196~51efeba8-6101-460d-b3ed-ac6d6cab4271-24331986
To: <sip:0504908886@192.168.0.11>;tag=42D656D0-18E9
Date: Thu, 04 Jul 2013 11:10:49 GMT
Call-ID: 607ec800-1d515839-932-6400a8c0@192.168.0.100
Server: Cisco-SIPGateway/IOS-12.x
CSeq: 101 INVITE
Allow-Events: telephone-event
Contact: <sip:0504908886@192.168.0.11:5060;transport=tcp>
Content-Length: 0