On Tue, 7 Oct 1997, Mike Diehn wrote:
On Tue, 7 Oct 1997, Eric Wieling wrote:
On Tue, Oct 07, 1997 at 01:03:14AM -0400, Charles Sprickman wrote:
I would not be surprised if the caller's phone number were logged, most modern modem banks talk ANIS and DNIS, which if I'm remembering correctly is basically caller ID. I'm thinking of putting this on our POP, as there doesn't seem to be an extra charge to get the data from the telco.
Unless you are using CallerID authentication, the Ascend MAXes do not log the caller's number. I assume that the TNT's have the same problem.
Hmmmm.... I have a few Ascend Max 400Xs using PRI T-1s for ISDN dialup and they log ANI, DNIS and a slew of other session specific info to LOCAL4. We don't use CallerID authentication.
Here's an example of a single ISDN session, sanitized info is in braces.
{Date Time FQDN} ASCEND: slot 0 port 0, line 1, channel 6, Incoming Call, {10-DIGIT-ANI} {Date Time FQDN} ASCEND: slot 9 port 4, Assigned to port, {10-DIGIT-ANI} {Date Time FQDN} ASCEND: call 50 AN slot 9 port 4 64K {7-DIGIT-DNIS} {Date Time FQDN} ASCEND: slot 9 port 4, LAN session up, {USERNAME} {Date Time FQDN} ASCEND: call 50 CL 0K u={USERNAME} c=2 p=65 {Date Time FQDN} ASCEND: slot 9 port 4, line 1, channel 6, Call Disconnected {Date Time FQDN} ASCEND: slot 9 port 4, Call Terminated {Date Time FQDN} ASCEND: slot 0 port 0, LAN session down, {USERNAME} {Date Time FQDN} ASCEND: call 50 CL 0K
Now, I don't know if the analog modems in maxen will log this inf. or not, but it's worth knowing that a max can do it for some types of calls.
One question, "can't the sender (aka the person initiating the call) forge the ANI information?" I know on a cisco (1003 series) it will croak if this is incorrect, but what about an Ascend or other ISDN device? Unless things have changed I don't think the TELCO's in the USA guarantee the ANI is correct. bye, ken emery