* INVITE SDP From cisco phone ***********************************

          Session Description Protocol
               Session Description Protocol Version (v): 0
               Owner/Creator, Session Id (o): Cisco-SIPUA 23750 23012 IN IP4 217.215.25.53
                    Owner Username: Cisco-SIPUA
                    Session ID: 23750
                    Session Version: 23012
                    Owner Network Type: IN
                    Owner Address Type: IP4
                    Owner Address: 217.215.25.53
               Session Name (s): SIP Call
               Connection Information (c): IN IP4 212.3.14.126
                    Connection Network Type: IN
                    Connection Address Type: IP4
                    Connection Address: 212.3.14.126
               Time Description, active time (t): 0 0
                    Session Start Time: 0
                    Session Stop Time: 0
               Media Description, name and address (m): audio 35130 RTP/AVP 0 8 18 101
                    Media Type: audio
                    Media Port: 35130
                    Media Proto: RTP/AVP
                    Media Format: 0
                    Media Format: 8
                    Media Format: 18
                    Media Format: 101
               Media Attribute (a): rtpmap:0 PCMU/8000
                    Media Attribute Fieldname: rtpmap
                    Media Attribute Value: 0 PCMU/8000
               Media Attribute (a): rtpmap:8 PCMA/8000
                    Media Attribute Fieldname: rtpmap
                    Media Attribute Value: 8 PCMA/8000
               Media Attribute (a): rtpmap:18 G729/8000
                    Media Attribute Fieldname: rtpmap
                    Media Attribute Value: 18 G729/8000
               Media Attribute (a): rtpmap:101 telephone-event/8000
                    Media Attribute Fieldname: rtpmap
                    Media Attribute Value: 101 telephone-event/8000
               Media Attribute (a): fmtp:101 0-15
                    Media Attribute Fieldname: fmtp
                    Media Attribute Value: 101 0-15

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**** ANSWER SDP From Asterisk

          Session Description Protocol
               Session Description Protocol Version (v): 0
               Owner/Creator, Session Id (o): root 14333 14334 IN IP4 212.3.14.126
                    Owner Username: root
                    Session ID: 14333
                    Session Version: 14334
                    Owner Network Type: IN
                    Owner Address Type: IP4
                    Owner Address: 212.3.14.126
               Session Name (s): session
               Connection Information (c): IN IP4 212.3.14.126
                    Connection Network Type: IN
                    Connection Address Type: IP4
                    Connection Address: 212.3.14.126
               Time Description, active time (t): 0 0
                    Session Start Time: 0
                    Session Stop Time: 0
               Media Description, name and address (m): audio 14402 RTP/AVP 3 0 8 101
                    Media Type: audio
                    Media Port: 14402
                    Media Proto: RTP/AVP
                    Media Format: 3
                    Media Format: 0
                    Media Format: 8
                    Media Format: 101
               Media Attribute (a): rtpmap:3 GSM/8000
                    Media Attribute Fieldname: rtpmap
                    Media Attribute Value: 3 GSM/8000
               Media Attribute (a): rtpmap:0 PCMU/8000
                    Media Attribute Fieldname: rtpmap
                    Media Attribute Value: 0 PCMU/8000
               Media Attribute (a): rtpmap:8 PCMA/8000
                    Media Attribute Fieldname: rtpmap
                    Media Attribute Value: 8 PCMA/8000
               Media Attribute (a): rtpmap:101 telephone-event/8000
                    Media Attribute Fieldname: rtpmap
                    Media Attribute Value: 101 telephone-event/8000
               Media Attribute (a): fmtp:101 0-16
                    Media Attribute Fieldname: fmtp
                    Media Attribute Value: 101 0-16
               Media Description, name and address (m): video 13404 RTP/AVP
                    Media Type: video
                    Media Port: 13404