Hello,
When upgrading to 3CX V15 with Yealink Firmware 29.81.0.60 911 calls no longer function when default SIP port of 5060 is not being used on 3CX. For example-- Our 3CX SIP port is 13060, when watching the call hit the phone system it tries to hit 911@5060 rather than 911@13060 returning an...