[c-nsp] SIP to ISDN Call Progress

[Brian Turnbow]

> >
> 
> Hello,
> 
> I configured my dial-peer in this way:
> dial-peer voice 1400 pots
>  voice cut-through alert
>  preference 4
>  destination-pattern 199151119
>  progress_ind setup enable 1
>  no digit-strip
>  port 0/0/1:15
> !

Better to use progress_ind setup enable 3
Telling the network that the originating address is not ISDN.
This will tell the remote side "I don't generate tones please do it for me" (more or less:))
You may also add
progress_ind alert enable 8
progress_ind progress enable 8

forcing the router to treat the incoming alerts as in band info is now available.

> 
> Now i see the PI reminder:
> 
> Nov 15 14:39:07.121 CET: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8
> callref
> = 0x1C5C
> 	Bearer Capability i = 0x8090A3
> 		Standard = CCITT
> 		Transfer Capability = Speech
> 		Transfer Mode = Circuit
> 		Transfer Rate = 64 kbit/s
> 	Channel ID i = 0xA9839F
> 		Exclusive, Channel 31
> 	Progress Ind i = 0x8181 - Call not end-to-end ISDN, may have in-
> band info
> 
> 	Calling Party Number i = 0x0180, '03631970353'
> 		Plan:ISDN, Type:Unknown
> 	Called Party Number i = 0x81, '199151119'
> 		Plan:ISDN, Type:Unknown
> Nov 15 14:39:07.133 CET: ISDN Se0/1/0:15 Q931: RX <- SETUP_ACK pd = 8
> callref = 0x9C5C
> 	Channel ID i = 0xA9839F
> 		Exclusive, Channel 31
> Nov 15 14:39:08.253 CET: ISDN Se0/1/0:15 Q931: RX <- CALL_PROC pd = 8
> callref = 0x9C5C
> 
Here there is still no indicator saying inband info is now available. So the gateway does not open the channel.


Ciao 

Brian



> Looking at this:
> http://www.cisco.com/en/US/tech/tk1077/technologies_tech_note09186a0080
> 094c33.shtml#progresstones
> I would expect the call to be cutted-throug after the SETUP_ACK has
> been
> received.
> Anyway I have the same problem, no audio i sent to my phone before the
> CONNECT message.
> 
> Thank You