[Asterisk-Users] voip solution with SER, ASTERSIK and CCM

Reto.Kortas at t-systems.com Reto.Kortas at t-systems.com
Tue Aug 9 02:23:21 MST 2005


We are planning to install a voip system based on asterisk for 2000-3000 retail locations and up to 6000-8000 sip accounts/users. 
Instead of setting up a new, centralized PSTN gateway, we are intend to use a CISCO gateway/router of an existing CISCO voip solution in the headquarter and we must able to call all CISCO based voip phones in the headquarter running together with a CCM.

SIP-Phones -> SER -> * -> CCM/Voice Gateway -> PSTN

I'm very new to * and voip an so I have a couple question to get this done:

	1.	Is asterisk powerful enough to handle such a lot of sip users? I heard about using * together with SER. SER as the SIP Proxy/Registrar and * as a gateway to the rest of the world. Could this be an effective solution?
	2.	CCM by default wouldn't talk SIP. To bring * and the CCM together we have too use H.323. (* as an H.323 gateway with the OH323 channel?). 
	Are their any experience in using * with a CISCO voice gateway and interconnect the SIP world with the CCM world?
	The goal should be to setup a single dial plan for the headquarter and the retail locations!
	3.	Are their a failover solutions to set these up in an HA manner?

Any notes and proposals are welcome!

Thanks in advance,

Reto





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