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Home > Archive > Voice over IP Cisco > February 2007 > phones at remote site frequent failing over to SRST,
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phones at remote site frequent failing over to SRST,
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| Hi all,
We have a remote site in Australia connected back to our singapore headquarters, which is home of our callmanager. Phones in our australia site register back with the callmanager in Singapore. If the WAN link goes down, they would register with the voic
e gateway in SRST mode. What we would see in our CM logs is that phones will unregister from the primary callmanager, try to register with the secondary, and then attempt to register with srst. We believe that this is primarily a circuit issue, but a ti
cket opened up with the carrier says that there is no disconnects. The carrier ran a ping monitor between the two sites. Shortly(3 minutes) after the phones go into srst, they will drop existing calls and register back with the callmanager in singapore.
This seems to happen around once a day and randomly. Users rarely report that the internet went down at the same time. None of thei
r web sessions or IM clients disconnect. For example, the phones would unregister around!
1am when no one is in the office. We are running CM 4.1(3) and even our Australia voice gateways(MGCP) unregister from callmanager. However, none of the phones in our Singapore office experience any issues. Ping times are around 117ms between sites.
Any ideas to get this resolved?
Thanks!
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