I have users reporting that midway through a call that they suddenly get dead air. Placing the call on hold, and retrieving the call re-establishes voice in both directions.
Model: Cisco 7970
This phone is an Agent taking calls from UCCE. The issue only happens a few times a day, and has happened on different phones at different times.
Wondering if this could be a bug perhaps?
There is no routing issues or firewalls in play here.