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New Member

IP Phone and PVDM question

I'm installing a couple of 7900 series IP Phones behind a switch and 1760-V router with CME 4.0 already installed. Assuming everything has been configured, will I need to install PVDM modules in the router to make inbound/outbound calls on the IP Phones? Thanks

3 REPLIES
Green

Re: IP Phone and PVDM question

You will need only PVDM for voice termination from PSTN (FXO, T1 PRI) or xcoding conference...

not IP Phone to IP Phone calls...

New Member

Re: IP Phone and PVDM question

Thanks for the quick reply. One last question, is there a limit on the number of IP Phones per router model?

Hall of Fame Super Red

Re: IP Phone and PVDM question

Hi Joe,

Here are the numbers;

Maximum Total

IP Phones

Cisco IAD 2430

24

Cisco 1751-V

24

Cisco 1760, Cisco 1760-V

24

Cisco 261xXM, 262xXM

36

Cisco 2650XM, 2651XMx

48

Cisco 2691

72

Cisco 2801

24

Cisco 2811

36

Cisco 2821

48

Cisco 2851

96

Cisco 3725

144

Cisco 3745

192

Cisco 3825

168

Cisco 3845

240

http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/requirements/guide/cme403sp.htm

Hope this helps!

Rob

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