Hi Okkie26,
Thanks for replying.
The WAN port goes the the router directly which has dedicated internet and is dedicated for VoIP.
The router has port forwarding for SIP ports to the SIP trunk provider only.
It works perfect till the Avaya issue comes present.
I didn't think of the...
First time poster long time reader. I've been doing Avaya systems for many years since Nortel sold to them.
Hoping someone can help.
I have around 30 IP Office system running version 10.0 to 11.1. Of various versions in between.
They all run the same sip trunk provider and same sip trunk...
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