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SRST

I have router 3640 with two interface E1´s connected to PSTN.

How i can choose the phones which should be survive when fail the PSTN ?

If have phones A,B,C,D,E. With SRTS need only A,C,E.

2 REPLIES
Bronze

Re: SRST

If you are running CCM 3.3 there is an option on the phone in CCM for srst enabled or not.

Geoff

Cisco Employee

Re: SRST

If you are running CM 3.2, there is an option to disable SRST in the phone configuration page.

If you are running 3.3, you have to create an SRST Preference, apply that SRST Preference to Device Pool and the Device Pool to the Device. For devices which don't need SRST, choose the SRST Preference as disable in the Device Pool

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