Setting Caller ID:
Extensions
Extensions -> Edit -> Advanced Options -> Set Caller ID
Used for setting Extensions Caller ID information. By default, the Extension Caller ID is usually set to the Extension number and user name. This information cannot be modified from the Extension settings but only through Enhanced Services. If your system ever encounters any problems with the Caller ID presentation, try to place a call with one of the preset 'Caller ID Presentation' options.
Trunks
Trunks -> Edit -> Advanced Options -> Outbound Caller ID
Used for setting the same Caller ID for all outbound calls going over a specific trunk (Required by some service providers)
DIDs
DIDs -> Edit -> Advanced Options -> Replace Caller ID
Used for setting the same Caller ID for all inbound calls coming over a specific trunk
IVR
IVR -> Edit -> Caller ID
Used for setting the Caller ID information for all calls coming from a specific Standard IVR. Each option dialed can be set with different Caller ID
Queues
Queues -> Edit -> Advanced Options -> Replace Caller ID
Used for setting the Caller ID information for all calls coming from specific Queue
Disabling Extension Caller ID:
If placing calls outside your network, make sure the Trunk outbound caller id is not set: