cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1036
Views
0
Helpful
2
Replies

Ringback tone Issue on AS5400XM Gateway

Senthil Kumar Sankar
Cisco Employee
Cisco Employee

Hi

Hi we have AS5400XM where we have E1 PRI terminated to local Mobile Operator.

We have a issue on Ringback tone and Callertune for few numbers.

Here is the scenario

SBC---->AS5400-----e1--->Operator

When i input the command tone ringback alert-no-PI on the POTS dial-peer
I hear the normal Ringback tone for all the phone calls,but for few numbers they have Callertunes,even for those i still hear ringing sound


When i remove the command no tone ringback alert-no-PI on the POTS dial-peer
I am not able to hear the Ringback tone for all the phone calls, but i hear the Callertunes for the respective Mobile Operator Numbers


Please find the below debug isdn q931 logs:

NORINGBACK TONE CALL LOG When no tone ringback alert-no-PI is configured :

000821: Feb 16 05:17:57.795 IST: ISDN Dc7/5 SC Q931: Applying typeplan for sw-type 0x19 is 0x1 0x1, Calling num 04406667
000822: Feb 16 05:17:57.799 IST: ISDN Dc7/5 SC Q931: Applying typeplan for sw-type 0x19 is 0x2 0x1, Called num 27288128037053
000823: Feb 16 05:17:57.799 IST: ISDN Dc7/5 SC Q931: TX -> SETUP pd = 8  callref = 0x2103
Bearer Capability i = 0x8090A3
  Standard = CCITT
  Transfer Capability = Speech 
  Transfer Mode = Circuit
  Transfer Rate = 64 kbit/s
Channel ID i = 0xE1858393
  Preferred, Interface 5, Channel 19
Facility i = 0x9E0100036774640000004C49414D2C0D0A4745412C747273332C30302C312C792C792C312C30343430363636370D0A4743492C30303262336236366564646433333161333263323030303432336532376133360D0A0D0A
Calling Party Number i = 0x91, '04406667'
  Plan:ISDN, Type:International
Called Party Number i = 0xA1, '27288128037053'
  Plan:ISDN, Type:National
000824: Feb 16 05:17:58.211 IST: ISDN Dc7/5 SC Q931: RX <- CALL_PROC pd = 8  callref = 0xA103
000828: Feb 16 05:18:01.811 IST: ISDN Dc7/5 SC Q931: RX <- ALERTING pd = 8  callref = 0xA103
000840: Feb 16 05:18:46.771 IST: ISDN Dc7/5 SC Q931: RX <- PROGRESS pd = 8  callref = 0xA103
Cause i = 0x8293 - User alerting, no answer
000842: Feb 16 05:18:57.271 IST: ISDN Dc7/5 SC Q931: RX <- RELEASE pd = 8  callref = 0xA103

CALLERTUNE heard CALL LOG, When no tone ringback alert-no-PI is configured :

000775: Feb 16 05:17:14.179 IST: ISDN Dc7/5 SC Q931: Applying typeplan for sw-type 0x19 is 0x1 0x1, Calling num 04406667
000776: Feb 16 05:17:14.179 IST: ISDN Dc7/5 SC Q931: Applying typeplan for sw-type 0x19 is 0x2 0x1, Called num 27288128091045
000777: Feb 16 05:17:14.179 IST: ISDN Dc7/5 SC Q931: TX -> SETUP pd = 8  callref = 0x20FE
Bearer Capability i = 0x8090A3
  Standard = CCITT
  Transfer Capability = Speech 
  Transfer Mode = Circuit
  Transfer Rate = 64 kbit/s
Channel ID i = 0xE185838C
  Preferred, Interface 5, Channel 12
Facility i = 0x9E0100036774640000004C49414D2C0D0A4745412C747273332C30302C312C792C792C312C30343430363636370D0A4743492C30303830303032656564393433333161333239313030303432336532376133360D0A0D0A
Calling Party Number i = 0x91, '04406667'
  Plan:ISDN, Type:International
Called Party Number i = 0xA1, '27288128091045'
  Plan:ISDN, Type:National
000778: Feb 16 05:17:14.251 IST: ISDN Dc7/5 SC Q931: RX <- CALL_PROC pd = 8  callref = 0xA0FE
Channel ID i = 0xE985838C
  Exclusive, Interface 5, Channel 12
000780: Feb 16 05:17:16.855 IST: ISDN Dc7/5 SC Q931: RX <- ALERTING pd = 8  callref = 0xA0FE
000781: Feb 16 05:17:16.971 IST: ISDN Dc7/5 SC Q931: RX <- PROGRESS pd = 8  callref = 0xA0FE
Progress Ind i = 0x8188 - In-band info or appropriate now available
000786: Feb 16 05:17:23.679 IST: ISDN Dc7/5 SC Q931: RX <- RELEASE pd = 8  callref = 0xA0FE

When i checked the Vesion of the IOS in AS5400XM, I could see it is

Experimental Version 12.4(20091207:094838)

Does this cause the problem ?? Do i have to upgrade the IOS ??

Regards

Senthil

2 Replies 2

The command "tone ringback alert-no-pi" generates ringback towards the calling party if an alert is received with no PI (Progress Indicators) present. Infact in your first debug no PI messages are present.
In ISDN  PI=0 informs the gateway that "no progress indicator is included".

Callertunes are audio messages played in early-media. They are alternative to the ringback. Infact in your second debug the PI description is "Progress Ind i = 0x8188 - In-band info or appropriate now available".
In ISDN PI=8 informs the gateway that "In-band information or appropriate pattern is now available" and so audio messages can be played.

Check if you have configured these commands:
voice rtp send-recv
voice call send-alert

If the problem remain, please post the gateway config and the output of "debug voice ccapi inout" and "debug ccsip message".

I would see also sip messages. If in the first case (no ringback) the gateway decode ISDN with 180 message + SDP we can use "disable-early-media 180" command. It informs the gateway to ignore the SDP message and provide local ringback.

Regards.

Hi Daniele

Apologies for the delay. Upgradation of the IOS made everything to work fine

Thanks for you help.

Regards

Senthil