[X-Unix] Sending Commands to Apple External USB Modem

Eric F Crist ecrist at secure-computing.net
Mon Jan 7 04:12:19 PST 2008

You'll need a utility such as cu or minicomm, and you'll have to figure out which Tty it's being attached as. The console.log should give you a clue, watch it (tail -f /var/log/console.log) while you plug in the modem. This is an educated guess at best, since I don't have one of these brasties to play with.

Eric F Crist
Secure Computing Networks  

-----Original Message-----
From: Rick Gordon <rick at rickgordon.com>

Date: Mon, 7 Jan 2008 01:22:47 
To:"A place to discuss Mac OS X from the perspective of the command line." <x-unix at listserver.themacintoshguy.com>
Subject: [X-Unix] Sending Commands to Apple External USB Modem

Can someone point me in the direction of how to send raw commands to an Apple External USB Modem (v. 92)?

Mainly, I would like to be able to tell the modem to go on hold indefinitely.

Information on <https://modemsite.com/56k/v92c.asp> lists the following command sequence:

	To make an outgoing call while holding your Internet connection:

	AT+PMHR - response will be value from above chart - server starts timer

	AT+PMHF - your modem does a hook flash; gives you dial-tone on extension phone plugged into modem; You can place your call. When finished and you hang up, the line will RING.

But I'm not sure how to send commands to the modem. (Back in Classic days, with a serial modem, I would have used an application such as HyperTerminal or DataComet, but I've lost touch with how to communicate with an external USB modem under OS X.)

Thanks in advance.


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