ā10-10-2011 12:40 AM - edited ā03-16-2019 07:24 AM
Hello!
When users dial telephone PSTN number (GSM number) from phone registered on CUCM 7.1 call is established through SIP-trunk with ISR Cisco 2821 which is connected with PSTN through ISDN PRI. If number is busy or unavailable caller hear ringback tones instead voice message about inaccessibility. I have consulted with service provider and he informed me that is normally because time of this voice messages shouldn't not be billed. How I can configure voice gateway that caller can hear this messages about PSTN-number inaccessibility?
Debug of call to PSTN-number XXXXXXXX (mobile phone is powered down):
*Oct 10 07:21:00.992: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8 callref = 0x57B6
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA9838A
Exclusive, Channel 10
Calling Party Number i = 0x0181, 'YYYYYYYY'
Plan:ISDN, Type:Unknown
Called Party Number i = 0x81, 'XXXXXXXX'
Plan:ISDN, Type:Unknown
*Oct 10 07:21:01.064: ISDN Se0/0/0:15 Q931: RX <- SETUP_ACK pd = 8 callref = 0xD7B6
Channel ID i = 0xA9838A
Exclusive, Channel 10
*Oct 10 07:21:07.868: ISDN Se0/0/0:15 Q931: RX <- CALL_PROC pd = 8 callref = 0xD7B6
Progress Ind i = 0x8288 - In-band info or appropriate now available
Progress Ind i = 0x8282 - Destination address is non-ISDN
*Oct 10 07:21:12.440: ISDN Se0/0/0:15 Q931: RX <- PROGRESS pd = 8 callref = 0xD7B6
Progress Ind i = 0x8288 - In-band info or appropriate now available
Progress Ind i = 0x8282 - Destination address is non-ISDN
*Oct 10 07:21:12.448: ISDN Se0/0/0:15 Q931: RX <- PROGRESS pd = 8 callref = 0xD7B6
Progress Ind i = 0x8288 - In-band info or appropriate now available
Progress Ind i = 0x8282 - Destination address is non-ISDN
*Oct 10 07:21:12.452: ISDN Se0/0/0:15 Q931: RX <- PROGRESS pd = 8 callref = 0xD7B6
Progress Ind i = 0x8288 - In-band info or appropriate now available
Progress Ind i = 0x8282 - Destination address is non-ISDN
ā10-10-2011 01:24 AM
Hi,
If your gateway is H323 controlled
You could try adding
!
voice call convert-discpi-to-prog
!
to the global config
Please see link.
http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a0080111b58.shtml#voipout
HTH
Alex
ā10-10-2011 04:15 AM
Hello, acampbell!
>>voice call convert-discpi-to-prog
>>This command converts an inbound ISDN disconnect message with a PI to a H.225 progress message with the same PI value.
In debug there is no signal DISCONNECT- only PROGRESS.
>>If your gateway is H323 controlled
There is SIP-trunk via voice gateway and CUCM.
ā10-10-2011 04:37 AM
Hi,
As you are receiving :-
*Oct 10 07:21:07.868: ISDN Se0/0/0:15 Q931: RX <- CALL_PROC pd = 8 callref = 0xD7B6
Progress Ind i = 0x8288 - In-band info or appropriate now available
You are seeing Progress indicators value of "8"
Have you configured your outbound POTS dial peer to include. :-
For example
!
dial-peer voice 9 pots
description *** O/G LEVEL 9 TRAFFIC TO PSTN ***
destination-pattern 9T
tone ringback alert-no-PI
progress_ind setup enable 3
progress_ind alert enable 8
progress_ind progress enable 8
progress_ind connect enable 8
direct-inward-dial
port 0/0/0:15
HTH
Alex
ā10-10-2011 05:04 AM
I add this commands, but it not solve problem:
dial-peer voice 9 pots
tone ringback alert-no-PI
translation-profile outgoing e1_out
destination-pattern 9
progress_ind setup enable 3
progress_ind alert enable 8
progress_ind progress enable 8
progress_ind connect enable 8
direct-inward-dial
port 0/0/0:15
*Oct 10 12:58:48.486: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8 callref = 0x58E3
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98389
Exclusive, Channel 9
Progress Ind i = 0x8183 - Origination address is non-ISDN
Calling Party Number i = 0x0181, 'YYYYY'
Plan:ISDN, Type:Unknown
Called Party Number i = 0x81, 'XXXXXXX'
Plan:ISDN, Type:Unknown
*Oct 10 12:58:48.558: ISDN Se0/0/0:15 Q931: RX <- SETUP_ACK pd = 8 callref = 0xD8E3
Channel ID i = 0xA98389
Exclusive, Channel 9
*Oct 10 12:58:50.842: ISDN Se0/0/0:15 Q931: RX <- CALL_PROC pd = 8 callref = 0xD8E3
Notification Ind i = 0xFB
*Oct 10 12:58:51.962: ISDN Se0/0/0:15 Q931: RX <- PROGRESS pd = 8 callref = 0xD8E3
Cause i = 0x849F - Normal, unspecified
Progress Ind i = 0x8488 - In-band info or appropriate now available
ā10-10-2011 05:44 AM
Hi,
Looks like when the telco send you the CALL PROC they are expecting your gateway to respond.
Can you try adding
Global config.
!
voice rtp send-recv
!
I cant think of anything else.
Regards
Alex
ā10-10-2011 06:20 AM
The problem is solved. I set "Media Termination Point Required" on CUCM SIP-trunk settings.ISDN trace after that hasn't changed. Possibly the problem was in SIP between CUCM and 2821.
Thank you for help!!
ā10-10-2011 06:50 AM
Andrei
Well done +5 for you
ā10-10-2011 11:58 AM
Hello,
The thing that worked for me is change the SIP trunk in CUCM. There should be a ""Send PRACK if 1xx contains SDP". This should enable early media so you connect the RTP to the phone and hear the provider messages.
I'm not sure if this parameter was available in CUCM 7.1, I have a 8.6 at hand, but if it's not in the SIP trunk profile it should be in the CUCM service parameters.
You can also take a look on the following thread;
https://supportforums.cisco.com/thread/2044345
Stoyan
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