09-20-2010 06:07 AM - edited 03-16-2019 12:52 AM
Hi,
Got a H.323 2821 (C3825-SPSERVICESK9-M), Version 12.4(25d) where we do not get ringback from service provider. See debug and dialpeer below. Can someone help me resolve this one? Service provider are pointing finger at us and TAC have pointed it back to them!
*Sep 20 13:04:23.479: ISDN Se0/0/0:15 Q931: RX <- SETUP pd = 8 callref = 0x1836
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA1839E
Preferred, Channel 30
Progress Ind i = 0x8481 - Call not end-to-end ISDN, may have in-band inf
o
Calling Party Number i = 0x2083, '7895678764'
Plan:Unknown, Type:National
Called Party Number i = 0xA1, '6608'
Plan:ISDN, Type:National
Sending Complete
*Sep 20 13:04:23.487: ISDN Se0/0/0:15 Q931: TX -> CALL_PROC pd = 8 callref = 0x
9836
Channel ID i = 0xA9839E
Exclusive, Channel 30
*Sep 20 13:04:23.503: ISDN Se0/0/0:15 Q931: TX -> ALERTING pd = 8 callref = 0x9
836
Progress Ind i = 0x8188 - In-band info or appropriate now available
*Sep 20 13:04:27.227: ISDN Se0/0/0:15 Q931: RX <- DISCONNECT pd = 8 callref = 0
x1836
Cause i = 0x8090 - Normal call clearing
*Sep 20 13:04:27.227: ISDN Se0/0/0:15 Q931: TX -> RELEASE pd = 8 callref = 0x98
36
*Sep 20 13:04:27.275: ISDN Se0/0/0:15 Q931: RX <- RELEASE_COMP pd = 8 callref =
0x1836
Dialpeer:
dial-peer voice 11 pots
preference 1
destination-pattern 9T
progress_ind setup enable 3
progress_ind alert enable 8
progress_ind progress enable 8
progress_ind connect enable 8
translate-outgoing calling 8
translate-outgoing called 10
incoming called-number .
direct-inward-dial
port 0/0/0:15
forward-digits all
Help!
Rich
09-20-2010 07:33 AM
The provider is providing in-band ringback.
*Sep 20 13:04:23.503: ISDN Se0/0/0:15 Q931: TX -> ALERTING pd = 8 callref = 0x9
836
Progress Ind i = 0x8188 - In-band info or appropriate now available
We need to see what the VoIP leg is doing, though.
Collect q931 debugs in parallel with:
debug voip ccapi inout
debug h225 asn1
debug h245 asn1
debug ip tcp trans
debug cch323 all
Collect as follows:
Router(config)# service sequence
Router(config)# service timestamps debug datetime msec
Router(config)# logging buffered 10000000 7
Router(config)# no logging con
Router(config)# no logging mon
Router(config)# voice iec syslog
Router# term len 0
Router# sh logg
When the alerting with PI of 8 is received, you should see a PI of 8 on the CCAPI legs, and H245 address should be exchanged by the h225 alerting. Then make sure OLCs get exchanged/acked. If that's good and you still don't have ringback, get a PCM capture and see if you see ringback in the audio from the provider.
09-24-2010 06:39 AM
Removed the progress_ind from the voip dial peer and Service Provider provided ringback - fixed.
Thanks.
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