VG224 SCCP SRST

dave.hodgkiss · ‎07-21-2008

Hi can anyone help: I have got several vg224's configured as skinny and as a third option under sccp it points to the local voice gateway. Problem is that if i get a wan failure all the devices on the vg224 register as ephones on the local voice gateway. I only have a few devices on the vg224 which need to fallback to srst, is there any way of controlling which or how many devices register in srst.

Cheers Dave

Adrian Saavedra · ‎07-21-2008

Hi friend,

You achieve this by means of Device Pools configured with SRST Reference. The phones that are in a Device Pool that contains a valid SRST Reference will fallback when lose connectivity to their primary call agent. Phones that are in Device Pools without a configured SRST Reference will not.

Regards,

- AdriÃ¡n.

dave.hodgkiss · ‎07-22-2008

Adrian you are quite correct with an ip phone this works perfectly but with a skinny gateaway device pools make no difference to srst. Because the 3rd option under the sccp ccm group config on the vg224 is the voice gateeway all devices on the vg224 register with the voice gateway as ephones if they cannot talk to the callmanager.

Marwan ALshawi · ‎07-22-2008

use what is called CME srst

and the following example hope will be helpfull

telephony-service

srst mode auto-provision all

srst ephone template 1

srst ephone description SRST learned

srst dn template 1

srst dn line-mode dual

max-ephones 4

max-dn 20

!

ephone-dn-template 1

call-forward max-length 8

call-forward busy 2001

call-forward noan 2001 timeout 5

!

ephone-template 1

softkeys idle Newcall Redial Pickup Gpickup

softkeys alerting Endcall Callback

softkeys connected Endcall Hold Trnsfer Park Confrn

!

ephone-dn 9 dual-line

number 1001

description 1001

name 1001

ephone-dn-template 1

!

ephone-dn 11 dual-line

number 1002

description 1002

name 1002

ephone-dn-template 1

!

ephone 3

description SRST learned

ephone-template 1

mac-address 0050.5629.0103

button 1:9

!

ephone 4

description SRST learned

ephone-template 1

mac-address 0050.5629.0104

button 1:11