6945 does not register in SRST Mode

[aalejo]

SRST 8.5

6945 9.1(1)

CUCM 8.5

Any ideas?

[thisisshanky]

have a few questions for you...

Do you have a data and voice router ?

do you have created SRST references in CUCM ?

does that reference point to the voice router ?

how are you testing SRST ?

Can you paste a config sample...?

What IOS version are you running on the router...

[aalejo]

Yes, everything is there. This what you get from the router:

ephone-1[0] Mac:588D.0935.55FD TCP socket:[1] activeLine:0 whisperLine:0 REGISTERED in SCCP ver 20/17 max_streams=1

mediaActive:0 whisper_mediaActive:0 startMedia:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:12

IP:10.3.89.252 * 35851 Unknown 564  keepalive 78 max_line 12 available_line 0

Preferred Codec: g711ulaw

Lpcor Type: none

N02RT001#

ephone-1[0] Mac:588D.0935.55FD TCP socket:[1] activeLine:0 whisperLine:0 REGISTERED in SCCP ver 20/17 max_streams=1

mediaActive:0 whisper_mediaActive:0 startMedia:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:12

IP:10.3.89.252 * 35851 Unknown 564  keepalive 78 max_line 12 available_line 0

Preferred Codec: g711ulaw

Lpcor Type: none

N02RT001#

But the phone said : Phone not registered,

[William Bell]

ephone-1[0] Mac:588D.0935.55FD TCP socket:[1] activeLine:0 whisperLine:0 REGISTERED in SCCP ver 20/17 max_streams=1
mediaActive:0 whisper_mediaActive:0 startMedia:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:12 
IP:10.3.89.252 * 35851 Unknown 564  keepalive 78 max_line 12 available_line 0
Preferred Codec: g711ulaw 
Lpcor Type: none 

The "available_line 0" is a little concerning. Can you check your max dns? In other posts this hasn't solved the problem, but worth a check. Maybe check/post "sh call-manager-fallback".

HTH.

Regards,
Bill

[aalejo]

Max dn and max ephones are configured.

[paolo bevilacqua]

Take debug ephone register.

[aalejo]

I did it but i did not save the results . I will continue the troubleshooting today or next week.

[Marcel Ammann]

Hello,

Are you sure that is SRST 8.5?

It seems to be a IOS problem. Is the IOS greater then version 15 ? Could you make an upgrade to a newer IOS?

The SCCP Version changed from phone load 8.3.X to 9.1.x and it could be that the IOS don't understand the SCCP Messages. I had the same problem with one older Cisco 2621 last week. The problem with the older router is that their is no IOS 15.0 available.

I think that the phone type is unknown:

ephone-1[0] Mac:588D.0935.55FD TCP socket:[1] activeLine:0 whisperLine:0 REGISTERED in SCCP ver 20/17 max_streams=1

mediaActive:0 whisper_mediaActive:0 startMedia:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:12

IP:10.3.89.252 * 35851 Unknown 564  keepalive 78 max_line 12 available_line 0

Preferred Codec: g711ulaw

Lpcor Type: none

N02RT001#

ephone-1[0] Mac:588D.0935.55FD TCP socket:[1] activeLine:0 whisperLine:0 REGISTERED in SCCP ver 20/17 max_streams=1

mediaActive:0 whisper_mediaActive:0 startMedia:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:12

IP:10.3.89.252 * 35851 Unknown 564  keepalive 78 max_line 12 available_line 0

Preferred Codec: g711ulaw

Lpcor Type: none

To comparison:

ephone-1[0] Mac:0022.9059.A8FB TCP socket:[5] activeLine:0 whisperLine:0 REGISTERED in SCCP ver 17/17 max_streams=5

mediaActive:0 whisper_mediaActive:0 startMedia:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:9

IP:172.16.100.4 * 35892 7975 sub=1 keepalive 7547 max_line 22 available_line 2

Phone reports 2 Available Lines

button 1: cw:1 ccw:(0 0)

Please send us "show version" and "show inventory".

Kind regards,

Marcel Ammann

P.S.: Please rate helpful post's

[aalejo]

Tried two versions: 15.1(3)T1 and 15,1(2)T3 with same results.

This is a 2951.

Tried phone firmware 9.1.1 and 9.2.1 with same results. 9.2.1 was worst because was not even able to register on CUCM 8.5 or SRST.router

On the CME/SRST compatibility matrix i could not find the 6945. TAC said that will be supported next month but today i will have a final answer.

[paolo bevilacqua]

I checked a CME 8.6 and the 6945 is not supported.

I guess you'll have to wait.

[aalejo]

Exactly what I found yesterday on version 8.5.

Even though CCO 6945 release notes for firmware 9.1.1 said that it is  CME compatible. Another CCO typo, i supposed.

I was hoping for a workaround .

[paolo bevilacqua]

What they mean, it's (will be) CME compatible - when CME software wil be release.

[William Bell]

Interesting discussion. I came across this thread:

https://supportforums.cisco.com/thread/2070118

Which touches on the your topic. About half-way down the thread, you will find the following from Saurabh:

6945 is supported with CME.
You need to do the following to get them registered.

Support 6945 new sccp endpoints on SRST/CME/CME-as-SRST.
1. add specific built-in ephone device
2. add special handling as RT-LITE 6921/6941/6961 family

I believe Saurabh is referring to using the ephone-type command to configure a custom phone type.

HTH.

Regards,

Bill

[aalejo]

The 6945 was not on the list on CLI.

[William Bell]

Correct. It has been established that CME doesn't recognize the phone and therefore won't have pre-defined phone types. What I believe Saurabh was referring to is that you can add a custom type for the 6945 phone so that CME knows how to handle the device.

HTH.

Regards,

Bill