I have a problem with some BT element analogue phones which are connected via ATA186s at a remote site to a CUCM 6.1.3 cluster.
We have deployed ATAs with various phones at many sites without any issues. However these particular phones at this site do not 'ring' when called. The phone displays that is is receiving a call but there is no audio alert.
The ATAs are at there default settings and the phones ringing volume has been checked.
Has anyone come across this problem - I am wondering if this particular model of phone is an issue?