Outgoing and while you are on call it is not an issue. But while the ATA is rebooting (during the 2-3 seconds), if you had an incoming call, I assume it will fail. NAT entries will be there. But when the router tries to hand off the packet to ATA , the packet will be lost since there will be no one on the other to receive. Since its UDP, retries will not happen.
Using VOIPo services since February 2007
Beta Tested the VOIPo Reseller Plan.
A happy VOIPo Residential Customer
Using VoIP devices since 12-2002
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No, the SIP is too. Some implementations support SIP over TCP, but not many.
About the only thing you see use TCP with voip is the config and firmware updates. Almost everything else is UDP.
I just put a review up Tim.
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