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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