topic Re: Modem caller ID in Operating System - HP-UX

Modem caller ID

Javier Ballesteros — Mon, 12 Jun 2000 11:07:44 GMT

We have some external users accessing via modem our HP9000 R380 (HP-UX 10.20) server. Provided that:
- the telephone company offers the caller ID service (not ISDN but analog lines)
- the modem supports the caller ID feature

is it possible to configure HP-UX to:
- reject incoming calls based on the calling telephone number?
- log the callers' telephone numbers?

Thank you very much.

Re: Modem caller ID

Steven Sim Kok Leong — Tue, 20 Jun 2000 01:12:27 GMT

Hi,

If the incoming call's phone number can be displayed in one way or another in HP-UX, you may wish to create an Expect script for this purpose.

Expect scripting allows non-interactive scripting for interactive programs such as minicom. It allows you to specify various inputs to deal with various outputs from your interactive program.

Regards.

Steven Sim.

Re: Modem caller ID

Bill Hassell — Tue, 20 Jun 2000 23:05:54 GMT

Modems that understand caller ID will have an extended status capability. There is nothing in HP-UX that can take advantage of this feature, especially if you want to use getty to post a login prompt. The sequence would require the getty program to first perform status checks on the modem, then compare the ID string with a file. There is no code to perform this task in getty.