sccp/sip shared line on srst

[mdaswani]

We have both sccp and sip phones with shared lines.  When on SRST only the sccp shared line will ring for an inbound call but not the sip shared line.  Is there a way to make this work or is this not supported?

Manish

[yahsiel2004]

Can you post your config?

Regards,

Yosh

[mdaswani]

Here is the pertinent config...

voice service voip
 allow-connections h323 to sip
 allow-connections sip to h323
 allow-connections sip to sip
 fax protocol cisco
 sip
  registrar server
  midcall-signaling passthru
!
voice register global
 max-dn 144
 max-pool 42
 dialplan-pattern 1 312555.... extension-length 6 extension-pattern 21....
 application app.sip
!
voice register pool  1
 id network 10.109.0.0 mask 255.255.0.0
 dtmf-relay rtp-nte
 call-forward b2bua busy 214005
 call-forward b2bua noan 214005 timeout 10
 codec g711ulaw
 no vad
!
voice-card 0
!
application
 global
  service alternate default
!

dial-peer voice 1 pots
 destination-pattern 91[2-9]..[2-9]......
 port 0/0/0:23
 forward-digits 11
!
dial-peer voice 2 pots
 destination-pattern 9011T
 port 0/0/0:23
 prefix 011
!
dial-peer voice 3 pots
 destination-pattern 9[2-9]11
 port 0/0/0:23
 forward-digits 3
!
dial-peer voice 100 pots
 incoming called-number 312555....
 direct-inward-dial
 port 0/0/0:23
!
call-manager-fallback
 secondary-dialtone 9
 max-conferences 8 gain -6
 transfer-system full-consult
 ip source-address 10.9.176.135 port 2000
 max-ephones 42
 max-dn 144
 dialplan-pattern 1 312555.... extension-length 6 extension-pattern 21....
 transfer-pattern .T
 voicemail 214005
 alias 1 0 to 214005
 call-forward busy 214005
 call-forward noan 214005 timeout 15
 

[Tony Cilli Jr]

At a bare minimum, you need to make sure your gateway is configured to function as a SIP Registrar Server for the phones. You can achieve this under the 'voice service voip' section.

>enable
#conf t
#(conf) voice service voip
#(conf-voi-srv-voip) sip
#(conf-voi-srv-voip-sip) registrar server [expires [max sec] [min sec]]

If you already have this, then throw up your config so we can break it down and troubleshoot.

Regards,

-Tony

[Tim Walker]

Hi Manish.

Did you ever get to the bottom of this? I have the same problem with a 9971 and a 7925. In SRST they both register with the shared DN, but if you call the DN, one time the 9971 will only alert and the next time only the 7925 will alert?

[Manish Gogna]

Hi Tim,

As per the following

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucme/admin/configuration/guide/cmeadm/cmebasic.html#pgfId-1081127

Configuring a Mixed Shared Line

To configure a mixed shared line between Cisco Unified SIP IP and Cisco Unified SCCP IP phones, perform the following steps.

Prerequisites

Cisco Unified CME 9.0 or a later version.

Restrictions

• Cisco Unified SCCP trunk-dn is not supported.
• Mixed shared lines can only be configured on one of several common directory numbers.
• Mixed shared lines are not supported in Cisco Unified SRST.

Manish

[Tim Walker]

Thanks Manish.

I think I am safe in assuming I need to be using CME as SRST and not CallManager fallback like I am now for this to work?

[Tim Walker]

Apologies, just read the last line of the restrictions:-

• Mixed shared lines are not supported in Cisco Unified SRST.