teletechman
Technical User
I have a customer that is experiencing call drops on their SIP trunks, we have checked all the switches and firewall settings to make sure that there is not routing issues. What I have seen is that the SIP will re-register to the providers backup server and send a "bye" message when this happens. It seems that the IP Office get the main server sometimes and at other times get the back up. I have been told the following by the provider.
The srv lookups are weighted. When you try to register and do a SRV look up to port 0 it will return to you the 192.58.90.20 ip unless it is unavailable for some reason. If unavailable it will give you 192.58.91.20. If you do a standard DNS lookup if will 50% of the time 192.58.90.20 and the rest 192.58.91.20.
They say it is an issue with the way the IP Office looks up the SRV record for the FQDN. I say this is bull as other customers to the same provider have not complained with the same IP Office settings. Anyone else see anything like this before.
Thank you Mike
The srv lookups are weighted. When you try to register and do a SRV look up to port 0 it will return to you the 192.58.90.20 ip unless it is unavailable for some reason. If unavailable it will give you 192.58.91.20. If you do a standard DNS lookup if will 50% of the time 192.58.90.20 and the rest 192.58.91.20.
They say it is an issue with the way the IP Office looks up the SRV record for the FQDN. I say this is bull as other customers to the same provider have not complained with the same IP Office settings. Anyone else see anything like this before.
Thank you Mike