I am using the Grandstream 6204 and attempting to configure it through the AMI (Asterisk Manager Interface). However, I have encountered an issue when dialing external numbers through our extension. The PABX (Private Automatic Branch Exchange) system is changing the caller ID to the SIP username.
Upon reviewing the AMI log, I noticed that I dialed 1111111111, but the PABX changed the caller ID to +9772222222, which is my SIP username. Consequently, when configuring the AMI into my system, it recognizes +9772222222 as the external call number.
To resolve this issue and ensure that the dialed number appears as the caller ID, please advise on the necessary steps or settings adjustments.