Can SCCP VG using PLAR in SRST

[Cameron Whitehead]

We are setting up a new site that has an analog device using PLAR.  The device is going to be using a SCCP port on a VG and I am trying to find out if there is a way to configure esrst to keep that PLAR configuration in the case of a WAN outage.

[Roger Kallberg]

SCCP PLAR for analog ports is AFAIK configured in IOS. As such it would apply to SRST and normal operating mode. How have you configured PLAR for the device/line?

[Cameron Whitehead]

I have created a PLAR calling search space applied to the line and a translation pattern that will matches blank and has a Called Party Transformation Mask that forwards to the number I want it to ring.

[Roger Kallberg]

That’s what I thought. This is not how you configure PLAR for analog lines on a VG. When I get to work I’ll post an example how to do this from one of our VGs.

[Roger Kallberg]

Example from one of our VGs.

stcapp ccm-group 10
stcapp

voice-port 0/0/7
 cptone SE
 timeouts ringing infinity

sccp local GigabitEthernet0/0
sccp ccm <IP of CM CPE1> identifier 2 version 7.0 
sccp ccm <IP of CM CPE2> identifier 3 version 7.0 
sccp ccm <IP of CM CPE3> identifier 4 version 7.0
sccp ccm <IP of SRST router> identifier 1 version 7.0 
sccp

sccp ccm group 10
 bind interface GigabitEthernet0/0
 associate ccm 2 priority 1
 associate ccm 3 priority 2
 associate ccm 4 priority 3
 associate ccm 1 priority 4
 switchback method graceful
 
sccp plar
  voiceport 0/0/7 dial <number to dail>

dial-peer voice 507 pots
 no tone dialtone remote-onhook
 service stcapp
 port 0/0/7

[Cameron Whitehead]

Okay so I just apply this directly on the VG and keep my SRST config on my ISR as is?  That is great... and pretty easy.  I will give that a test.  Thanks!

[Roger Kallberg]

Correct. Just make sure that the CSS set on the device and/or line has access to the dialed number defined in the PLAR.