Can i use cisco 2951 cme 9 router to connect different branch location ip phones together with different subnet?

hi all,
I want to do VoIP , with cisco 2951 router with cme 9.0. I just want to know can i connect differnt branch  ip phone in differnt subnet in single centralized cme router 2951.
that is for differnt branch ip phone there is differnt dhcp pool and then interVlan routing or as such.
i have already done it for 1 location ,can i uses that single router to connect there all branch office?
thank you
regards,
vishakha

Yes that works. The phones get an IP from the local site with the info where to reach the TFTP-Server (which is typically the CME). From there the phones load a config file and learn the IP of the CME. The rest is pure routing from the phone to the CME.
I don't know where marin and thana is, just make sure that the delay and jitter between the sites is inside an accepted range of < 150ms (latency) and < 30 ms (jitter).
Don't stop after you've improved your network! Improve the world by lending money to the working poor:
http://www.kiva.org/invitedby/karsteni

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