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New Member

srst - limit phone registration

How do I limit which phones get registered to srst?

According to this forum discussion, it is suggested to set the phones you want registered with the default router and the phones you do not want to register change the default router.

http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.ee7437f

Would that require another small router on the same lan segment for the phones that I do not want to have srst enabled so they do not have an srst backup and still be able to route back to the primary location with call manager? Is there a better way to configure srst to accomplish limiting phone registration?

6 REPLIES
Bronze

Re: srst - limit phone registration

From the phone configuration page in ccmadmin, you can turn SRST on or off.

New Member

Re: srst - limit phone registration

I believe that is a function in CM 3.3. I am running 3.2x. Is there another option that can be set on the router to accomplish this?

Bronze

Re: srst - limit phone registration

3.2(2) does have the option, at the very bottom of the phone config page: "SRS Telephony".

3.3 Introduced the ability to define what IP the phone will try to register to.

New Member

Re: srst - limit phone registration

I don't see the SRS option in my version of callmanager. I am running 3.3.2 Service pack C. Is there a parameter you have to turn on somewhere to make this setting available. The only way I can see to limit the phones is to make a seperate device pool and set the SRST Reference in the device pool to Disable and put the phones I don't want to register in this device pool.

New Member

Re: srst - limit phone registration

Go to >SYSTEM>SRST and set up an SRST Reference. This then gets assigned at the device pool level, and you can then limit the phones that are SRST capable by applying them to that device pool.

Use the online-help on the CM, it's all there.

New Member

Re: srst - limit phone registration

Thanks for the reply. I understand how to set it up if I were to use a different device pool but I was interested in what some of the previous posts were referring to which is that you can set whether or not a phone should register with SRST on the device configuration page for that phone. I'd rather tell a phone not to register on it's configuration page than having 2 device pools per location, one for srst and one without.

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