I have some Astra phones running SIP firmware and just cannot get them registering on UDP, on TCP they register no problem but even though the phones config allows me to set static local SIP ports it keeps selecting random ones and then incoming calls don't work...the phones configs are very odd and unless the randomly set sip port matches the statically assigned one, incoming calls won't work.
Instead of trying to fix this issue though the phones config...my question is can I set the PBX to assign a pre-assigned static SIP port to the extension when it registers?
Instead of trying to fix this issue though the phones config...my question is can I set the PBX to assign a pre-assigned static SIP port to the extension when it registers?