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SIP Phone to PSTN: Call Blocking
C-53
Call Trace The following call trace shows a call, originating from an on-network SiP IP
phone, being blocked by the feature server.
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SIP Headers
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sip-req: INVITE sip:914083831059@192.168.26.180 SIP/2.0 [192.168.26.12:50420-
>192.168.26.180:6060]
Header: Via: SIP/2.0/UDP 192.168.26.12:5060
Header: From: sip:6715@192.168.26.12
Header: To: <sip:914083831059@192.168.26.180>
Header: Call-ID: c2943000-d061261-221d950-2e323931@192.168.26.12
Header: CSeq: 100 INVITE
Header: Expires: 180
Header: User-Agent: Cisco IP Phone/ Rev. 1/ SIP enabled
Header: Accept: application/sdp
Header: Contact: sip:6715@192.168.26.12:5060
Header: Content-Type: application/sdp
Header: Content-Length: 220
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SDP Headers
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Header: v=0
Header: o=CiscoSystemsSIP-IPPhone-UserAgent 14800 9904 IN IP4 192.168.26.12
Header: s=SIP Call
Header: c=IN IP4 192.168.26.12
Header: t=0 0
Header: m=audio 24246 RTP/AVP 0 101
Header: a=rtpmap:0 pcmu/8000
Header: a=rtpmap:101 telephone-event/8000
Header: a=fmtp:101 0-11
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SIP Headers
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sip-res: SIP/2.0 100 Trying [192.168.26.180:6060->192.168.26.12:5060]
Header: Via: SIP/2.0/UDP 192.168.26.12:5060
Header: From: <sip:6715@192.168.26.12:5060>
Header: To: <sip:914083831059@192.168.26.180:5060>
Header: Call-ID: c2943000-d061261-221d950-2e323931@192.168.26.12
Header: CSeq: 100 INVITE
Header: Content-Length: 0
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SIP Headers
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sip-req: INVITE sip:914083831059@192.168.26.200:6060;user=phone SIP/2.0
[192.168.26.180:6060->192.168.26.200:6060]
Header: Via: SIP/2.0/UDP 192.168.26.180:6060;branch=1
Header: Via: SIP/2.0/UDP 192.168.26.12:5060
Header: From: <sip:6715@192.168.26.12:5060>
Header: To: <sip:914083831059@192.168.26.180:5060>
Header: Call-ID: c2943000-d061261-221d950-2e323931@192.168.26.12
Header: CSeq: 100 INVITE
Header: Proxy-Authorization: Basic VovidaClassXSwitch
Header: Expires: 180
Header: Record-Route:
<sip:914083831059@192.168.26.180:6060;maddr=192.168.26.180>
Header: Contact: <sip:6715@192.168.26.12:5060>
Header: Content-Type: application/sdp
Header: Content-Length: 220
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SDP Headers
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Header: v=0
Header: o=CiscoSystemsSIP-IPPhone-UserAgent 14800 9904 IN IP4 192.168.26.12
Header: s=SIP Call
Header: c=IN IP4 192.168.26.12
Header: t=0 0
Header: m=audio 24246 RTP/AVP 0 101
Header: a=rtpmap:0 pcmu/8000