Thanks for the input again Philip. I just got off the phone with the people who
fireup the PRI (I guess they know what they are saying) and they mentioned that
they do not have any call looping option or nothing is disabled and that our
PBX is in full control and should be able to do zap bridge. Are there any other
PRI gurus who can have an input on this?
Thanks,
Bruce
> From: het...@hotmail.com
> To: asterisk@uc.org
> Date: Sun, 11 Apr 2010 17:56:09 -0400
> Subject: [on-asterisk] Native ZAP bridge fails on PRI between two channels
>
>
> Hi Guys,
>
> I am calling out to 416-999-1111 on Channel 1 of PRI and sending the call to
> a context that then dials 416-999-2222 on Channel 2 of PRI. When the two
> channels are going to be ZAP native bridged, both channels hangup and CLI
> show PRI cause (16).
>
> Asterisk Verbose (Channel 1 already connected to party):
>
> -- Requested transfer capability: 0x00 - SPEECH
> -- Called g0/4169992222
> -- Zap/2-1 is proceeding passing it to Zap/1-1
> -- Zap/2-1 is ringing
> -- Zap/2-1 answered Zap/1-1
> -- Native bridging Zap/1-1 and Zap/2-1
> -- Channel 0/1, span 1 got hangup request, cause 16
> -- Hungup 'Zap/2-1'
> == Spawn extension (zap-bridge, s, 8) exited non-zero on 'Zap/1-1'
> -- Hungup 'Zap/1-1'
>
> Here is PRI debug, starting just before Channel two is connected until both
> channels are disconnected (maybe FACILITY 98 is of interest?!):
>
>
> < Message type: CONNECT (7)
> q931.c:3626 q931_receive: call 32865 on channel 2 enters state 10 (Active)
> > Protocol Discriminator: Q.931 (8) len=5
> > Call Ref: len= 2 (reference 97/0x61) (Originator)
> > Message type: CONNECT ACKNOWLEDGE (15)
> -- Zap/2-1 answered Zap/1-1
> -- Native bridging Zap/1-1 and Zap/2-1
> > Protocol Discriminator: Q.931 (8) len=27
> > Call Ref: len= 2 (reference 96/0x60) (Originator)
> > Message type: FACILITY (98)
> > [1c 14 91 a1 11 02 01 06 06 07 2a 86 48 ce 15 00 08 30 03 02 01 61]
> > Facility (len=22, codeset=0) [ 0x91, 0xA1, 0x11, 0x02, 0x01, 0x06, 0x06,
> > 0x07, '*', 0x86, 'H', 0xCE, 0x15, 0x00, 0x08, '0', 0x03, 0x02, 0x01, 'a' ]
> PROTOCOL 11
> A1 0011 (CONTEXT SPECIFIC [1])
> 02 0001 06 (INTEGER: 6)
> 06 0007 2A 86 48 CE 15 00 08 (OBJECTIDENTIFIER: 2a 86 48 ce 15 00 08)
> 30 0003 (SEQUENCE)
> 02 0001 61 (INTEGER: 97)
> < Protocol Discriminator: Q.931 (8) len=9
> < Call Ref: len= 2 (reference 96/0x60) (Terminator)
> < Message type: DISCONNECT (69)
> < [08 02 80 90]
> < Cause (len= 4) [ Ext: 1 Coding: CCITT (ITU) standard (0) Spare: 0 Location:
> User (0)
> < Ext: 1 Cause: Normal Clearing (16), class = Normal Event (1) ]
> -- Processing IE 8 (cs0, Cause)
> q931.c:3826 q931_receive: call 32864 on channel 1 enters state 12 (Disconnect
> Indication)
> -- Channel 0/1, span 1 got hangup request, cause 16
> NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Active, peerstate Connect
> Request
> q931.c:3015 q931_disconnect: call 32865 on channel 2 enters state 11
> (Disconnect Request)
> > Protocol Discriminator: Q.931 (8) len=9
> > Call Ref: len= 2 (reference 97/0x61) (Originator)
> > Message type: DISCONNECT (69)
> > [08 02 81 90]
> > Cause (len= 4) [ Ext: 1 Coding: CCITT (ITU) standard (0) Spare: 0 Location:
> > Private network serving the local user (1)
> > Ext: 1 Cause: Normal Clearing (16), class = Normal Event (1) ]
>
> NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Disconnect Indication,
> peerstate Disconnect Request
> q931.c:2967 q931_release: call 32864 on channel 1 enters state 19 (Release
> Request)
> > Protocol Discriminator: Q.931 (8) len=9
> > Call Ref: len= 2 (reference 96/0x60) (Originator)
> > Message type: RELEASE (77)
> > [08 02 81 90]
> > Cause (len= 4) [ Ext: 1 Coding: CCITT (ITU) standard (0) Spare: 0 Location:
> > Private network serving the local user (1)
> > Ext: 1 Cause: Normal Clearing (16), class = Normal Event (1) ]
> -- Hungup 'Zap/1-1'
> < Protocol Discriminator: Q.931 (8) len=5
> < Call Ref: len= 2 (reference 96/0x60) (Terminator)
> < Message type: RELEASE COMPLETE (90)
> q931.c:3766 q931_receive: call 32864 on channel 1 enters state 0 (Null)
> NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Null, peerstate Null
> NEW_HANGUP DEBUG: Destroying the call, ourstate Null, peerstate Null
> < Protocol Discriminator: Q.931 (8) len=5
> < Call Ref: len= 2 (reference 97/0x61) (Terminator)
> < Message type: RELEASE (77)
> q931.c:3801 q931_receive: call 32865 on channel 2 enters state 0 (Null)
> NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Null, peerstate Release
> Request
> > Protocol Discriminator: Q.931 (8) len=9
> > Call Ref: len= 2 (reference 97/0x61) (Originator)
> > Message type: RELEASE COMPLETE (90)
> > [08 02 81 90]
> > Cause (len= 4) [ Ext: 1 Coding: CCITT (ITU) standard (0) Spare: 0 Location:
> > Private network serving the local user (1)
> > Ext: 1 Cause: Normal Clearing (16), class = Normal Event (1) ]
> NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Null, peerstate Null
> NEW_HANGUP DEBUG: Destroying the call, ourstate Null, peerstate Null
>
>
> System Info:
> Bell Canada PRI
> Asterisk 1.4.21.2
> Lib PRI 1.4.10
>
> Dialplan is as simple as this after first channel has already picked up:
>
> [bridge-calls]
>
> exten => s,1,Playback(beep)
> exten => s,n,Dial(ZAP/g0/${destNumb})
>
>
> Thanks,
> Bruce
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