| Most T-1 (and E1 also I assume) have a "blanket" outbound caller ID supplied by the telco, no matter what channel you grab you will likely get the same outbound caller ID unless the telco has specifically setup a special outbound caller ID for that channel.
If this is a ISDN-PRI it is handled a little differently, the system sends an outbound caller ID that is programmed in the system on that extension no matter what channel is used, if one is not supplied by the system then the telco circuit ID (main number) is usually substituted no matter what channel is selected. __________________
Telephony users cannot gain anything without first giving something in return. To obtain a useful feature, a feature of equal value must be lost.
This is Telephony’s First Law of Equivalent Exchange. |