I'm using CME 3.3 on 2800 router. Also using 7912 and 7940 and 7960 phones.
The issue is like this.
When the People in our plant are in a call and they try to adjust the reciever volume because they are in a loud environment,Then the external speaker switched on and the people here a very noisy and scratching noise.
Please help in getting this issue resolved.