We are currently using ISDN for our backup lines. I was asked if we can insert a special 6-digit number before dialing the 1+area code+number in the dialer string we would not have to pay a monthly requirement due to the new LD access code.
I tried this on our 2620 and 3640, but had unsuccessful results. This was the error I received.
3y34w: ISDN Se3/0:23 Q931: RX <- DISCONNECT pd = 8 callref = 0x880A
Cause i = 0x829C - Invalid number format (incomplete number)
3y34w: ISDN Se3/0:23 Q931: TX -> RELEASE pd = 8 callref = 0x080A
Does anyone have any information about inserting additional numbers within the dialer string?
Any help would be appreciated. Thanks.