[Asterisk-Users] SMS & Asterisk - an explanation

[Tim Robinson]

You need to make sure you have caller ID enabled on the line, as SMS 
relies on this to make it work.

Rgds
Tim

Asterisk wrote:

>I tried to send sms messages the other day from a * box connected to a E1
>line (BT ISDN30).
>
>Message never arrived, however, I was soon called back on the E1 by an
>automated BT system which sent a message stating that "you cannot send sms
>messages on this line"
>
>Is there anything I need to do before I start sending text messages ? Is it
>the ISDN30 that is the problem, and do I need to send SMS via standard lines
>(pots) or ISDN2e lines ?
>
>Julian.
>  
>