I have problem with AT530P after updating to Asterisk 18.104.22.168. UNHOLD stops working. (UNHOLD worked with Asterisk 22.214.171.124)
A - AT530P
B - PSTN/SIP Provider/Phone from other vendor (f.ex. X-Lite, Grandstream)
B call A.
A pick up the phone.
A press Hold and hear tone, B hear music.
A press Hold again and can talk, B hear music.
Please help me