Treat the remote site as a seperate site and h.323 the call managers. ""VoIP Guy"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Not a valid setup at all. Centralized CallManagers can't fall over to a > remote CallManager. In fact, a remote CM can't even be clustered over the > WAN (unless it's faster than 10MB link). For remote site fail over, you > need SRST off of a router to PSTN. It's a temp solution until you get the > WAN link or CallManager back up. > > For PSTN fallback in CallManager you need to create 2 route lists in CM. > First choice would be WAN. 2nd choice would be PSTN. Add both to a route > group. > > > wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Dear All, > > > > Need some advice on the redundancy features of CallManager. One of my > > customers is asking about the redundancy features of CM - he is thinking > of > > putting 2 CM servers at a main site providing local server redundancy, > > however, there will be a third CM server at a remote site which provide > > site redundancy. In case the main site fails, he wants the remote CM to > > take over the CM function of the main site without downtime. Please note > > that there are about 400 phone users at the main site and about 50 phone > > users at the remote site. Please advise how it can be done. > > > > Also this customer intend to have a leased line between the main site and > > the remote site to support voice and data requirements. However, the > > customer want to make sure that stable voice communication between the two > > sites is always available, hence when the leased line is not stable (for > > instance there were a lot of hits on the link) or down, the voice should > be > > rerouted to the PSTN. Please advice how to configure the CM/router such > > that the call can be routed to the PSTN when the leased line is not > stable. > > Can I use policy routing to achieve this? > > > > Thanks in advance! > > > > Maurice
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