I register a VoIP gateway to a SIP trunk of Asterisk server.
If I place a call from outbound (out of the VoIP gateway, for example, in PSTN), could I keep the caller ID of outbound caller to display on IP phones registering to Asterisk?
I meet a problem that when I place a call from outbound, the caller ID display on IP phones is the name of the SIP trunk on Asterisk.
How can I correct this problem?
Please give me your comments.
Thanks for all your replys.