We are unable to place a call using the speakerphone (Cisco 7921 SIP) in cme ,
It working when i dial number and pick the reciever calls are going .
it not working When i press speaker button to place call
voice register dn 10
voice register pool 100
id mac 1020.1201.8901
number 1 dn 10
cor incoming Local default
username user217 password cisco
Did you try what Harris is proposing? This should work in your case.