atcomsystems.ca/forum Forums VOIP Phones & IP PBX Cisco Telephones and Systems cisco question

I don't believe the Cisco SIP image supports it but I could be wrong.

The thing you have to remember about IP phones is everything has to be an IP packet. The only way that you can get paging through Cisco phones on a Cisco Call Manager is to have an application that provides a Multi-cast broadcast across the network such as Informacast, with the Relicast plug-in,(check out Singlewire.com). (Personally, I think Cisco screwed up on forcing you to use a 3rd party product for something as simple as paging but......)

As for paging through an FXO port, yes this does work. I don't have an example of what the script should look like at the moment, but I'll put one together & post it here later.

First thing of being a telephone guy is to define the issue.

You did a paging.

But no one asked external/interal or both.

The call manager will do internal paging to all phones with easy config changes.

The followup post concerning inicast and multicast is applicable.

Unicast to IP phones is a single stream to each phone which causes overhead issues.
Because of this, ten phones is the limit.

Using multicast is a single stream to all phones with virtually a limitless number of supported phones in the paging group.

Therefore Multicast must be enabled and it can be complex. This is CCNP level stuff.

Too many unknowns to provide a clear answer.

This is assuming CME.