Unity Connection TIMG/PIMG对开始的问候的呼叫卷
简介
T1媒体网关(TIMG)和PBX IP媒体网关(PIMG)设备用于为了允许PBX使用Unity Connection作为他们的语音邮件系统。通信从TIMG/PIMG到Unity Connection是通过会话初始化协议(SIP)。通信从PBX到Unity Connection是通过Time Division Multiplexing (TDM)。
本文描述也许遇到与此种集成的问题。
问题
Unity Connection配置与TIMG一起使用为了集成PBX。当您呼叫PBX和振铃无应答或者转发所有呼叫对语音邮件时，呼叫去开始的问候而不是语音留言问候语。
跟踪显示：
因为接收物理呼叫， TIMG撰写邀请。然而，这时， TIMG未接收从PBX的任何呼叫信息。
087:57.872 [VoIP ] Prot <----INVITE sip:Anonymous@14.48.13.103:5060 SIP/2.0
087:57.872 [VoIP ] Prot From:"Anonymous"<sip:Anonymous@14.48.13.115:5060;
user=phone>;vnd.pimg.port=7;tag=42B2324631353641000A6029
087:57.872 [VoIP ] Prot To:"Anonymous"<sip:Anonymous@14.48.13.103:5060>
087:57.872 [VoIP ] Prot Contact:<sip:14.48.13.115:5060>
087:57.872 [VoIP ] Prot Content-Type:application/sdp
087:57.872 [VoIP ] Prot Supported:replaces,early-session,100rel
087:57.872 [VoIP ] Prot Allow:INVITE,BYE,CANCEL,REFER,NOTIFY,OPTIONS,
REGISTER, INFO,ACK,PRACK
087:57.872 [VoIP ] Prot Expires:120
087:57.872 [VoIP ] Prot Call-ID:01B22816147E007E00000019@14.48.13.103
087:57.872 [VoIP ] Prot CSeq:1 INVITE
087:57.872 [VoIP ] Prot Max-Forwards:70
087:57.872 [VoIP ] Prot User-Agent:Voice Messaging
087:57.872 [VoIP ] Prot Via:SIP/2.0/UDP 14.48.13.115:5060;branch=z9hG4bKC
621E66EBDE4CB89FF423B472071147B
087:57.872 [VoIP ] Prot Content-Length:219
087:57.872 [VoIP ] Prot
087:57.872 [VoIP ] Prot v=0
087:57.872 [VoIP ] Prot o=phone 3397 20425 IN IP4 14.48.13.115
087:57.872 [VoIP ] Prot s=-
087:57.872 [VoIP ] Prot c=IN IP4 14.48.13.115
087:57.872 [VoIP ] Prot t=0 0
087:57.872 [VoIP ] Prot m=audio 18698 RTP/AVP 0 101 13
087:57.872 [VoIP ] Prot a=rtpmap:0 PCMU/8000/1
087:57.872 [VoIP ] Prot a=ptime:30
087:57.872 [VoIP ] Prot a=rtpmap:101 telephone-event/8000
087:57.872 [VoIP ] Prot a=fmtp:101 0-15
087:57.872 [VoIP ] Prot a=rtpmap:13 CN/8000
087:57.872 [VoIP ] Prot
087:57.872 [VoIP ] Prot ---->SIP/2.0 100 Trying
087:57.872 [VoIP ] Prot From: "Anonymous"<sip:Anonymous@14.48.13.115:5060;
user=phone>;vnd.pimg.port=7;tag=42B2324631353641000A6029
087:57.872 [VoIP ] Prot To: "Anonymous"<sip:Anonymous@14.48.13.103:5060>;
tag=f0c09771bd2942e7a57794619f8efccd
087:57.872 [VoIP ] Prot Via: SIP/2.0/UDP 14.48.13.115:5060;branch=z9hG4bKC
621E66EBDE4CB89FF423B472071147B
087:57.872 [VoIP ] Prot Expires: 120
087:57.872 [VoIP ] Prot Call-ID: 01B22816147E007E00000019@14.48.13.103
087:57.872 [VoIP ] Prot CSeq: 1 INVITE
087:57.872 [VoIP ] Prot Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,
REGISTER,SUBSCRIBE
087:57.872 [VoIP ] Prot Content-Length: 0
087:57.872 [VoIP ] Prot
087:57.888 [VoIP ] Prot
087:57.888 [VoIP ] Prot ---->SIP/2.0 180 Ringing
087:57.888 [VoIP ] Prot From: "Anonymous"<sip:Anonymous@14.48.13.115:5060;
user=phone>;vnd.pimg.port=7;tag=42B2324631353641000A6029
087:57.888 [VoIP ] Prot To: "Anonymous"<sip:Anonymous@14.48.13.103:5060>;
tag=f0c09771bd2942e7a57794619f8efccd
087:57.888 [VoIP ] Prot Via: SIP/2.0/UDP 14.48.13.115:5060;branch=z9hG4bKC
621E66EBDE4CB89FF423B472071147B
087:57.888 [VoIP ] Prot Expires: 120
087:57.888 [VoIP ] Prot Call-ID: 01B22816147E007E00000019@14.48.13.103
087:57.888 [VoIP ] Prot CSeq: 1 INVITE
087:57.888 [VoIP ] Prot Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,
REGISTER,SUBSCRIBE
087:57.888 [VoIP ] Prot Content-Length: 0
087:57.888 [VoIP ] Prot
087:57.968 [VoIP ] Prot
087:57.968 [VoIP ] Prot ---->SIP/2.0 200 OK
087:57.968 [VoIP ] Prot From: "Anonymous"<sip:Anonymous@14.48.13.115:5060;
user=phone>;vnd.pimg.port=7;tag=42B2324631353641000A6029
087:57.968 [VoIP ] Prot To: "Anonymous"<sip:Anonymous@14.48.13.103:5060>;
tag=f0c09771bd2942e7a57794619f8efccd
087:57.968 [VoIP ] Prot Via: SIP/2.0/UDP 14.48.13.115:5060;branch=z9hG4bKC
621E66EBDE4CB89FF423B472071147B
087:57.968 [VoIP ] Prot Contact: <sip:14.48.13.103:5060>
087:57.968 [VoIP ] Prot Expires: 120
087:57.968 [VoIP ] Prot Call-ID: 01B22816147E007E00000019@14.48.13.103
087:57.968 [VoIP ] Prot CSeq: 1 INVITE
087:57.968 [VoIP ] Prot Allow-Events: kpml
087:57.968 [VoIP ] Prot Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,
REGISTER,SUBSCRIBE
087:57.968 [VoIP ] Prot Content-Length: 224
087:57.968 [VoIP ] Prot Content-Type: application/sdp
087:57.968 [VoIP ] Prot
087:57.968 [VoIP ] Prot v=0
087:57.968 [VoIP ] Prot o=CiscoSystemsUCXN 399280213 399280214 IN IP4 14.
48.13.103
087:57.968 [VoIP ] Prot s=No Subject
087:57.968 [VoIP ] Prot c=IN IP4 14.48.13.103
087:57.968 [VoIP ] Prot t=0 0
087:57.968 [VoIP ] Prot m=audio 16716 RTP/AVP 0 101
087:57.968 [VoIP ] Prot a=rtpmap:0 PCMU/8000/1
087:57.968 [VoIP ] Prot a=ptime:30
087:57.968 [VoIP ] Prot a=rtpmap:101 telephone-event/8000
087:57.968 [VoIP ] Prot a=fmtp:101 0-15
这时，呼叫应答了，并且呼叫方听到开始的问候。
087:58.448 [VoIP ] Prot ---->SIP/2.0 200 OK
087:58.448 [VoIP ] Prot From: "Anonymous"<sip:Anonymous@14.48.13.115:5060;
user=phone>;vnd.pimg.port=7;tag=42B2324631353641000A6029
087:58.448 [VoIP ] Prot To: "Anonymous"<sip:Anonymous@14.48.13.103:5060>;
tag=f0c09771bd2942e7a57794619f8efccd
087:58.448 [VoIP ] Prot Via: SIP/2.0/UDP 14.48.13.115:5060;branch=z9hG4bKC
621E66EBDE4CB89FF423B472071147B
087:58.448 [VoIP ] Prot Contact: <sip:14.48.13.103:5060>
087:58.448 [VoIP ] Prot Expires: 120
087:58.448 [VoIP ] Prot Call-ID: 01B22816147E007E00000019@14.48.13.103
087:58.448 [VoIP ] Prot CSeq: 1 INVITE
087:58.448 [VoIP ] Prot Allow-Events: kpml
087:58.448 [VoIP ] Prot Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,
REGISTER,SUBSCRIBE
087:58.448 [VoIP ] Prot Content-Length: 224
087:58.448 [VoIP ] Prot Content-Type: application/sdp
087:58.448 [VoIP ] Prot
087:58.448 [VoIP ] Prot v=0
087:58.448 [VoIP ] Prot o=CiscoSystemsUCXN 399280213 399280214 IN IP4 14.
48.13.103
087:58.448 [VoIP ] Prot s=No Subject
087:58.448 [VoIP ] Prot c=IN IP4 14.48.13.103
087:58.448 [VoIP ] Prot t=0 0
087:58.448 [VoIP ] Prot m=audio 16716 RTP/AVP 0 101
087:58.448 [VoIP ] Prot a=rtpmap:0 PCMU/8000/1
087:58.448 [VoIP ] Prot a=ptime:30
087:58.448 [VoIP ] Prot a=rtpmap:101 telephone-event/8000
087:58.448 [VoIP ] Prot a=fmtp:101 0-15
TIMG接收从PBX的呼叫信息。这时，因为呼叫已经路由对Unity Connection，太晚。
087:58.384 [Tel-7 ] Event Dtmf (#) On
087:58.384 [Tel-7 ] Event Dtmf (#) Off
087:58.592 [Tel-7 ] Event Dtmf (0) On
087:58.592 [Tel-7 ] Event Dtmf (0) Off
087:58.768 [Tel-7 ] Event Dtmf (2) On
087:58.768 [Tel-7 ] Event Dtmf (2) Off
087:58.960 [Tel-7 ] Event Dtmf (#) On
087:58.960 [Tel-7 ] Event Dtmf (#) Off
087:59.168 [Tel-7 ] Event Dtmf (5) On
087:59.168 [Tel-7 ] Event Dtmf (5) Off
087:59.344 [Tel-7 ] Event Dtmf (2) On
087:59.344 [Tel-7 ] Event Dtmf (2) Off
087:59.408 [VoIP ] Prot
087:59.536 [Tel-7 ] Event Dtmf (8) On
087:59.536 [Tel-7 ] Event Dtmf (8) Off
087:59.744 [Tel-7 ] Event Dtmf (6) On
087:59.744 [Tel-7 ] Event Dtmf (6) Off
087:59.920 [Tel-7 ] Event Dtmf (#) On
087:59.920 [Tel-7 ] Event Dtmf (#) Off
088:00.112 [Tel-7 ] Event Dtmf (5) On
088:00.112 [Tel-7 ] Event Dtmf (5) Off
088:00.320 [Tel-7 ] Event Dtmf (5) On
088:00.320 [Tel-7 ] Event Dtmf (5) Off
088:00.496 [Tel-7 ] Event Dtmf (8) On
088:00.496 [Tel-7 ] Event Dtmf (8) Off
088:00.688 [Tel-7 ] Event Dtmf (8) On
088:00.688 [Tel-7 ] Event Dtmf (8) Off
088:00.896 [Tel-7 ] Event Dtmf (#) On
088:00.896 [Tel-7 ] Event Dtmf (#) Off
088:01.328 [VoIP ] Prot
087:59.408 [VoIP ] Prot ---->SIP/2.0 200 OK
087:59.408 [VoIP ] Prot From: "Anonymous"<sip:Anonymous@14.48.13.115:5060;
user=phone>;vnd.pimg.port=7;tag=42B2324631353641000A6029
087:59.408 [VoIP ] Prot To: "Anonymous"<sip:Anonymous@14.48.13.103:5060>;
tag=f0c09771bd2942e7a57794619f8efccd
087:59.408 [VoIP ] Prot Via: SIP/2.0/UDP 14.48.13.115:5060;branch=z9hG4bKC
621E66EBDE4CB89FF423B472071147B
087:59.408 [VoIP ] Prot Contact: <sip:14.48.13.103:5060>
087:59.408 [VoIP ] Prot Expires: 120
087:59.408 [VoIP ] Prot Call-ID: 01B22816147E007E00000019@14.48.13.103
087:59.408 [VoIP ] Prot CSeq: 1 INVITE
087:59.408 [VoIP ] Prot Allow-Events: kpml
087:59.408 [VoIP ] Prot Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,
REGISTER,SUBSCRIBE
087:59.408 [VoIP ] Prot Content-Length: 224
087:59.408 [VoIP ] Prot Content-Type: application/sdp
087:59.408 [VoIP ] Prot
087:59.408 [VoIP ] Prot v=0
087:59.408 [VoIP ] Prot o=CiscoSystemsUCXN 399280213 399280214 IN IP4 14.48.
13.103
087:59.408 [VoIP ] Prot s=No Subject
087:59.408 [VoIP ] Prot c=IN IP4 14.48.13.103
087:59.408 [VoIP ] Prot t=0 0
087:59.408 [VoIP ] Prot m=audio 16716 RTP/AVP 0 101
087:59.408 [VoIP ] Prot a=rtpmap:0 PCMU/8000/1
087:59.408 [VoIP ] Prot a=ptime:30
087:59.408 [VoIP ] Prot a=rtpmap:101 telephone-event/8000
087:59.408 [VoIP ] Prot a=fmtp:101 0-15
088:01.328 [VoIP ] Prot ---->SIP/2.0 200 OK
088:01.328 [VoIP ] Prot From: "Anonymous"<sip:Anonymous@14.48.13.115:5060;
user=phone>;vnd.pimg.port=7;tag=42B2324631353641000A6029
088:01.328 [VoIP ] Prot To: "Anonymous"<sip:Anonymous@14.48.13.103:5060>;
tag=f0c09771bd2942e7a57794619f8efccd
088:01.328 [VoIP ] Prot Via: SIP/2.0/UDP 14.48.13.115:5060;branch=z9hG4bKC
621E66EBDE4CB89FF423B472071147B
088:01.328 [VoIP ] Prot Contact: <sip:14.48.13.103:5060>
088:01.328 [VoIP ] Prot Expires: 120
088:01.328 [VoIP ] Prot Call-ID: 01B22816147E007E00000019@14.48.13.103
088:01.328 [VoIP ] Prot CSeq: 1 INVITE
088:01.328 [VoIP ] Prot Allow-Events: kpml
088:01.328 [VoIP ] Prot Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,
REGISTER,SUBSCRIBE
088:01.328 [VoIP ] Prot Content-Length: 224
088:01.328 [VoIP ] Prot Content-Type: application/sdp
088:01.328 [VoIP ] Prot
088:01.328 [VoIP ] Prot v=0
088:01.328 [VoIP ] Prot o=CiscoSystemsUCXN 399280213 399280214 IN IP4 14.48.
13.103
088:01.328 [VoIP ] Prot s=No Subject
088:01.328 [VoIP ] Prot c=IN IP4 14.48.13.103
088:01.328 [VoIP ] Prot t=0 0
088:01.328 [VoIP ] Prot m=audio 16716 RTP/AVP 0 101
088:01.328 [VoIP ] Prot a=rtpmap:0 PCMU/8000/1
088:01.328 [VoIP ] Prot a=ptime:30
088:01.328 [VoIP ] Prot a=rtpmap:101 telephone-event/8000
088:01.328 [VoIP ] Prot a=fmtp:101 0-15
088:01.920 [Tel-7 ] Event Tone Detect Enabled (0xFF)
在解析专家规则以后，呼叫信息从PBX被组织对此语句。这，在邀请，因此邀请可能适当地前，撰写应该接收。
088:01.920 [Tel-7 ] Event Cpid (5286,->,->5588,) (NoAns)
088:01.920 [VoIP ] Prot <----ACK sip:14.48.13.103:5060 SIP/2.0
088:01.920 [VoIP ] Prot CSeq:1 ACK
088:01.920 [VoIP ] Prot To:"Anonymous"<sip:Anonymous@14.48.13.103:5060>;
tag=f0c09771bd2942e7a57794619f8efccd
088:01.920 [VoIP ] Prot From:"Anonymous"<sip:Anonymous@14.48.13.115:5060;
user=phone>;vnd.pimg.port=7;tag=42B2324631353641000A6029
088:01.920 [VoIP ] Prot Call-ID:01B22816147E007E00000019@14.48.13.103
088:01.920 [VoIP ] Prot Max-Forwards:70
088:01.920 [VoIP ] Prot User-Agent:Voice Messaging
088:01.920 [VoIP ] Prot Via:SIP/2.0/UDP 14.48.13.115:5060;branch=z9hG4bK3
032A56F55534D5407B2D30922E6F860
088:01.920 [VoIP ] Prot Content-Length:0
088:01.920 [VoIP ] Prot
088:01.920 [VoIP ] Prot
此处TIMG在更新呼叫信息尝试操作。然而，这没有由Unity Connection接受。
088:01.920 [VoIP ] Prot <----INFO sip:14.48.13.103:5060 SIP/2.0
088:01.920 [VoIP ] Prot Diversion: <tel:5588>;reason=no-answer
088:01.920 [VoIP ] Prot Content-Type:text/source-party
088:01.920 [VoIP ] Prot To:"Anonymous"<sip:Anonymous@14.48.13.103:5060>;
tag=f0c09771bd2942e7a57794619f8efccd
088:01.920 [VoIP ] Prot From:"Anonymous"<sip:Anonymous@14.48.13.115:5060;
user=phone>;vnd.pimg.port=7;tag=42B2324631353641000A6029
088:01.920 [VoIP ] Prot Call-ID:01B22816147E007E00000019@14.48.13.103
088:01.920 [VoIP ] Prot CSeq:2 INFO
088:01.920 [VoIP ] Prot Max-Forwards:70
088:01.920 [VoIP ] Prot User-Agent:Voice Messaging
088:01.920 [VoIP ] Prot Via:SIP/2.0/UDP 14.48.13.115:5060;branch=z9hG4bK6
EBB9CF7420BA1A393273882D5157413
088:01.920 [VoIP ] Prot Content-Length:6
088:01.920 [VoIP ] Prot
088:01.920 [VoIP ] Prot 5286
088:01.968 [VoIP ] Prot
088:01.968 [VoIP ] Prot ---->SIP/2.0 200 OK
088:01.968 [VoIP ] Prot From: "Anonymous"<sip:Anonymous@14.48.13.115:5060;
user=phone>;vnd.pimg.port=7;tag=42B2324631353641000A6029
088:01.968 [VoIP ] Prot To: "Anonymous"<sip:Anonymous@14.48.13.103:5060>;
tag=f0c09771bd2942e7a57794619f8efccd
088:01.968 [VoIP ] Prot Via: SIP/2.0/UDP 14.48.13.115:5060;branch=z9hG4bK6
EBB9CF7420BA1A393273882D5157413
088:01.968 [VoIP ] Prot Call-ID: 01B22816147E007E00000019@14.48.13.103
088:01.968 [VoIP ] Prot CSeq: 2 INFO
088:01.968 [VoIP ] Prot Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,
REGISTER,SUBSCRIBE
088:01.968 [VoIP ] Prot Content-Length: 0
088:01.968 [VoIP ] Prot
此处主要问题是从PBX的呼叫信息到达大约在触发将发送的邀请对Unity Connection接收的物理呼叫以后的四秒。因而呼叫滚动了对开始的问候，因为没有转换：在初始包含邀请对Unity Connection告诉Unity Connection到路由呼叫的什么邮箱。
解决方案
为了调整此问题，导航对Configuration> TDM >General，查找最大呼叫Party迪莱(毫秒)和更改它到一个值例如5,000毫秒。这添加五秒钟延迟，在初始邀请撰写对Unity Connection前，允许所有呼叫信息的时刻接收从PBX。
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