CHAPTER 15 Media
Mediant 4000 SBC | User's Manual
Type= AMD
SubType= Beep
■
CPT-detected Beep:
Type= CPT
SubType=Beep
SIP Call Flow Examples of Event Detection and Notification
Two SIP call flow examples are provided below of event detection and notification:
■
Example 1:
This example shows a SIP call flow of the device's AMD and event detection
feature, whereby the device detects an answering machine and the subsequent start and end
of the greeting message, enabling the third-party application server to know when to play a
recorded voice message to an answering machine:
a.
Upon detection of the answering machine, the device sends the following SIP INFO
message to the application server:
INFO sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 172.22.168.249;branch=z9hG4bKac1566945480
Max-Forwards: 70
From: sut <sip:[email protected]:5060>;tag=1c1505895240
To: sipp <sip:[email protected]:5060>;tag=1
Call-ID: [email protected]
CSeq: 1 INFO
Contact: <sip:[email protected]>
Supported: em,timer,replaces,path,resource-priority
Allow:
REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,I
NFO,SUBSCRIBE,UPDATE
User-Agent: AudioCodes-Sip-Gateway/7.20A.252.011
Content-Type: application/x-detect
Content-Length: 30
Type= AMD
SubType= AUTOMATA
b.
Upon detection of the start of voice (i.e., the greeting message of the answering machine),
the device sends the following INFO message to the application server:
INFO sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 172.22.168.249;branch=z9hG4bKac482466515
Max-Forwards: 70
From: sut <sip:[email protected]:5060>;tag=1c419779142
To: sipp <sip:[email protected]:5060>;tag=1
Call-ID: [email protected]
CSeq: 1 INFO
Contact: <sip:[email protected]>
Supported: em,timer,replaces,path,resource-priority
Allow:
REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,I
NFO,SUBSCRIBE,UPDATE
User-Agent: AudioCodes-Sip-Gateway/7.20A.252.011
Content-Type: application/x-detect
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Summary of Contents for Mediant 4000 SBC
Page 1: ...User s Manual AudioCodes Series of Session Border Controllers SBC Mediant 4000 SBC Version 7 2...
Page 40: ...Part I Getting Started with Initial Connectivity...
Page 48: ...Part II Management Tools...
Page 113: ...Part III General System Settings...
Page 118: ...Part IV General VoIP Configuration...
Page 525: ...Part V Session Border Controller Application...
Page 654: ...Part VI Cloud Resilience Package...
Page 663: ...Part VII High Availability System...
Page 685: ...Part VIII Maintenance...
Page 759: ...Part IX Status Performance Monitoring and Reporting...
Page 844: ...Part X Diagnostics...
Page 888: ...Part XI Appendix...