The PBX work fine all day and then all the phone including the Linkus clinet start showing the 603 decline error.
The internal phones are on UDP
All the external IP phones are TLS and the rest are on Linkus Desktop.
TG1600

P570

The PBX work fine all day and then all the phone including the Linkus clinet start showing the 603 decline error.
The internal phones are on UDP
All the external IP phones are TLS and the rest are on Linkus Desktop.
TG1600

P570
