Single Number Reach (SNR) remote Destination, Problem

Gilles Dellaccio · ‎12-22-2013

Hi,

After configure the SNR, a guy (John) call the ip-phone (with its internal and external number), my cell phone rings, I answer, the cell is stalled.

But the call between the John's phone and my cell John is not connected, in the John's phone, you always hear the bells, as if nobody had yet won.

if i test with a call forwarding (forward all or no answer), it's good, no problem

Who have a idea?

It's a french intallation BRI.

CUCM v9.1 (BE6000)

c2901 v15.4(1)T (i have test with 15.3 and 15.2 version)

no error message in the router's debug q931 when in test SNR

Routeur-CUCM#
Dec 22 16:31:20.660: ISDN BR0/0/1 Q931: RX <- SETUP pd = 8 callref = 0x75
        Bearer Capability i = 0x8090A3
                Standard = CCITT
                Transfer Capability = Speech
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0x89
                Exclusive, B1
        Calling Party Number i = 0x2183, 'JOHN PHONE'
                Plan:ISDN, Type:National
        Called Party Number i = 0xA1, 'External number IP-PHONE'
                Plan:ISDN, Type:National
        Sending Complete
Dec 22 16:31:20.680: ISDN BR0/0/1 Q931: TX -> CALL_PROC pd = 8 callref = 0xF5
        Channel ID i = 0x89
                Exclusive, B1
Dec 22 16:31:20.692: ISDN BR0/0/1 Q931: TX -> ALERTING pd = 8 callref = 0xF5
        Progress Ind i = 0x8088 - In-band info or appropriate now available
Dec 22 16:31:24.700: ISDN BR0/0/0 Q931: TX -> SETUP pd = 8 callref = 0x77
        Sending Complete
        Bearer Capability i = 0x8090A3
                Standard = CCITT
                Transfer Capability = Speech
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0x8A
                Exclusive, B2
        Calling Party Number i = 0x2183, 'External number IP-PHONE'

                Plan:ISDN, Type:National
        Called Party Number i = 0x80, 'My CELL PHONE number'
                Plan:Unknown, Type:Unknown
        Redirecting Number i = 0x00008F, '117'
                Plan:Unknown, Type:Unknown
Dec 22 16:31:24.768: ISDN BR0/0/0 Q931: RX <- CALL_PROC pd = 8 callref = 0xF7
        Channel ID i = 0x8A
                Exclusive, B2
Dec 22 16:31:29.804: ISDN BR0/0/0 Q931: RX <- ALERTING pd = 8 callref = 0xF7
        Channel ID i = 0x8A
                Exclusive, B2
        Progress Ind i = 0x8088 - In-band info or appropriate now available
Dec 22 16:31:31.984: ISDN BR0/0/0 Q931: RX <- CONNECT pd = 8 callref = 0xF7
        Channel ID i = 0x8A
                Exclusive, B2
        Facility i = 0x91A306020100020103
                Protocol Profile = Remote Operations Protocol
                0xA306020100020103
                Component = Return Error component
                        Invoke Id = 0

Error = 3 not available

Manish Prasad · ‎12-22-2013

It seems to be configuration issue with SNR.

Check this document- https://supportforums.cisco.com/docs/DOC-27111

Thanks

Manish

Gilles Dellaccio · ‎12-23-2013

Thanks, i used this document for to check my configuration, but it does not solves my problem.

My SNR "works", the cell ring, but when i answer, the communication is not connected with John (external phone) and my cell, as if the CUCM did not see that the cell has answered.

Gilles Dellaccio · ‎12-30-2013

I use a MGCP gateway, it's possible to just use the the SNR feature with this gateway's type?

Or it's requires a H323 gateway?

Gilles Dellaccio · ‎01-08-2014

Hi, no idea for me?

I don't use the MVA, and for the MVA I know it takes a H323 gateway.

I tested with a trunk sip link and it's ok, SNR work.

It's possible to use the SNR with a MGCP gateway?

I have check with this document, but no succes for use with my MGCP gateway.

https://supportforums.cisco.com/docs/DOC-27111

Can you help me please?

Thanks.

Carlo Poggiarelli · ‎01-08-2014

HI Gilles.

Can you please attach a screenshot of both Remote Destination and Remote Destination Profile pages.

Thanks

Carlo

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Gilles Dellaccio · ‎01-09-2014

Hi Carlo, you can see my screenshot of both Remote Destination and Remote Destination Profile pages in the attached file.

Thanks

Carlo Poggiarelli · ‎01-09-2014

Hi Gilles

Can you try to put Answer Too Soon timer to 500 instead of 1500 and send a deb isd q931 from your gateway?

Thanks

Regards

Carlo

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Gilles Dellaccio · ‎01-09-2014

Hi Carlo,

It's the same problème with "Answer Too Soon timer to 500", but i tested with H323 gateway and Trunk Sip and it's ok, but no with MGCP gateway :-(

Gateway-MGCP#debug isdn q931

debug isdn q931 is ON.

Gateway-MGCP#

*Jan 9 17:31:47.135: ISDN BR0/0/0 Q931: RX <- SETUP pd = 8 callref = 0x0D

Sending Complete

Bearer Capability i = 0x9090A3

Standard = CCITT

Transfer Capability = 3.1kHz Audio

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0x89

Exclusive, B1

Calling Party Number i = 0x2083, '296622525'

Plan:Unknown, Type:National

Called Party Number i = 0x81, '1228'

Plan:ISDN, Type:Unknown

*Jan 9 17:31:47.167: ISDN BR0/0/0 Q931: TX -> CALL_PROC pd = 8 callref = 0x8D

Channel ID i = 0x89

Exclusive, B1

*Jan 9 17:31:47.191: ISDN BR0/0/0 Q931: TX -> ALERTING pd = 8 callref = 0x8D

Progress Ind i = 0x8088 - In-band info or appropriate now available

*Jan 9 17:31:51.191: ISDN BR0/0/0 Q931: TX -> SETUP pd = 8 callref = 0x04

Sending Complete

Bearer Capability i = 0x8090A3

Standard = CCITT

Transfer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0x8A

Exclusive, B2

Calling Party Number i = 0x2083, '0296642525'

Plan:Unknown, Type:National

Called Party Number i = 0x80, '0290035006'

Plan:Unknown, Type:Unknown

Redirecting Number i = 0x00008F, '2001'

Plan:Unknown, Type:Unknown

*Jan 9 17:31:51.563: ISDN BR0/0/0 Q931: RX <- CALL_PROC pd = 8 callref = 0x84

Channel ID i = 0x8A

Exclusive, B2

*Jan 9 17:31:52.415: ISDN BR0/0/0 Q931: RX <- ALERTING pd = 8 callref = 0x84

*Jan 9 17:31:52.967: ISDN BR0/0/0 Q931: RX <- PROGRESS pd = 8 callref = 0x84

Cause i = 0x87F2 - Unknown cause value

Progress Ind i = 0x8281 - Call not end-to-end ISDN, may have in-band info

*Jan 9 17:31:55.127: ISDN BR0/0/0 Q931: RX <- CONNECT pd = 8 callref = 0x84

*Jan 9 17:32:02.123: ISDN BR0/0/0 Q931: RX <- DISCONNECT pd = 8 callref = 0x84

Cause i = 0x8790 - Normal call clearing

*Jan 9 17:32:02.619: ISDN BR0/0/0 Q931: RX <- RELEASE pd = 8 callref = 0x0D

Cause i = 0x8790 - Normal call clearing

*Jan 9 17:32:02.623: ISDN BR0/0/0 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x8D

Info Request i = 0x80

*Jan 9 17:32:32.179: ISDN BR0/0/0 Q931: RX <- RELEASE pd = 8 callref = 0x84

Cause i = 0x8790 - Normal call clearing

*Jan 9 17:32:32.183: ISDN BR0/0/0 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x04

Info Request i = 0x80

*Jan 9 17:32:34.271: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0/0/0, TEI 0 changed to down

*Jan 9 17:32:34.299: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0/0/0, TEI 0 changed to up

Nadeem Ahmed · ‎01-08-2014

I think if its a MGCP gateway then might need to re-route the call back to H.323 gw and back to CUCM. having said if its only mgcp gw in the call flow then it won't work.

Br,
Nadeem

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Carlo Poggiarelli · ‎01-09-2014

Hi Gilles.
To be honest I always preferred SIP or H323 as signaling protocol.
Tomorrow I'll setup a LAB to test MGCP with SNR and I'll let you know

Regards

Carlo

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Gilles Dellaccio · ‎01-09-2014

ok Carlo, thank you very much for your help.

Carlo Poggiarelli · ‎01-10-2014

Good morning Gilles.

I reproduded SNR configuration in my lab with mgcp gateway.

Adjusting following timers, all worked good.

Answer Too Soon Timer: 500

Answer Too Late Timer: 30000

Delay Before Ringing Timer:1000

Try this settings and let me know

Regards

Carlo

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Gilles Dellaccio · ‎01-10-2014

i have the same problem with this timers.

Carlo Poggiarelli · ‎01-10-2014

Gilles,

Please collect a debbug isdn q931 during these 3 situations

1) direct call to your mobile from an ip phone

2) forward your extension to your mobile and call your extension from another ip phone

3) From an ip phone, call your extensions removing call forward settings.

Thanks

Carlo

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