Was having some issues with a Yealink T41s receiving call from both external and internal. Hours of troubleshooting later what I thought was a codec issue turned out to be an issue with the phone RTP Encryption being set to true which is its default setting.
edit: Adding: Originate Resulted in...
Hi there Fusion community!
I've recently upgraded some T41S phones to the latest 66.85.0.5 firmware and discovered that users with more than one line registered on their phone cannot check their secondary line's voicemail by simply pressing the secondary line and then the message (*97) button...