carlosmcse
IS-IT--Management
I am newbie to the Avaya VoIP system and i am trying to get a better understanding on how the LSP mode works. This is what we are trying to accomplish. We have multiple office locations world wide. Currently they have their own phone system and if we need to call a office we must dial the entire phone number and the call is connected thru the PSTN network. Our goal is to migrate to VoIP and centralize our phone system. The plan is to use the AVAYA solution on all of our offices and install at out datacenter 2 G650's 2 S8730's CM 5.x and 4 S3500's for VM. For the remote offices we will be installing 2 G450's and 1 S8510 in LSP mode. My understandig (and correct me if i am wrong) is that the office gateways (G450's) will be registered to the datacenter CM's (S8730's), this means that a call coming in to the office Gateway will be answered by the datacenter CM's (S8730's) but since almost all of our offices only have DID's assigned directly to user's extensions (no auto-attendants etc...) the datacenter CM will pass the call to the local office extension then if the call is not answered the VM system (S3500) in the datacenter will answer the call if VM is setup for the extension. If the WAN connection between the remote office and the datacenter is down the local S8510 will take over the calls coming in from the local gateway until the WAN connection is restored. We will have PRI's and PSTN lines for VM routing, my understanding is that if the WAN is down the the local CM is handling the calls for the local office and if the call needs to go to VM the call the local office will make a call to the datacenter system via the PSTN in order to save the VM to the S3500's is this correct?
Sorry for the long message.
Sorry for the long message.