Howto:SIP/ISDN signaling interworking: Difference between revisions
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1. -> SIP/INVITE | 1. -> SIP/INVITE | ||
2. -> ISDN/SETUP | 2. -> ISDN/SETUP | ||
3. <- ISDN/ | 3. <- ISDN/DISCONNECT with cause 'user busy' and progress indicator | ||
4. <- SIP/183 Session Progress | 4. <- SIP/183 Session Progress | ||
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1. -> SIP/INVITE | 1. -> SIP/INVITE | ||
2. -> ISDN/SETUP | 2. -> ISDN/SETUP | ||
3. <- ISDN/ | 3. <- ISDN/RELEASE with cause 'user busy' | ||
4. <- SIP/486 Busy Here | 4. <- SIP/486 Busy Here | ||
5. -> SIP/ACK | 5. -> SIP/ACK |
Revision as of 12:16, 6 June 2008
Applies To
This information applies to
- all innovaphone products
V6 sr2 or higher.
More Information
...
Call to a busy PSTN user with inband information provided by PSTN
1. -> SIP/INVITE 2. -> ISDN/SETUP 3. <- ISDN/DISCONNECT with cause 'user busy' and progress indicator 4. <- SIP/183 Session Progress Calling user hears the inband information provided by PSTN and terminates the call then. 5. -> SIP/CANCEL 6. <- SIP/200 OK 7. -> ISDN/RELEASE 8. <- SIP/487 Request Terminated 9. -> SIP/ACK
Call to a busy PSTN user without inband information provided by PSTN
1. -> SIP/INVITE 2. -> ISDN/SETUP 3. <- ISDN/RELEASE with cause 'user busy' 4. <- SIP/486 Busy Here 5. -> SIP/ACK