03-09-2008 01:28 PM - edited 03-15-2019 09:19 AM
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
03-09-2008 01:44 PM
You will need only PVDM for voice termination from PSTN (FXO, T1 PRI) or xcoding conference...
not IP Phone to IP Phone calls...
03-09-2008 02:05 PM
Thanks for the quick reply. One last question, is there a limit on the number of IP Phones per router model?
03-09-2008 02:20 PM
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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