Re: PM3

Marty Likier (marty@livingston.com)
Sat, 23 Nov 1996 19:59:17 -0800 (PST)

>1. As an ISP, am curious which company's modem technology do you us on
>the PM3 digital modem. (e.g. Rockwell Chip, AT&T Chip, TI DSP, etc.)
>

WE use standard off-the-shelf DSPs (Analog Devices DSP-2181) and widely
compatible V.34 modem source code

>2. Can we selectively Busy out any of the 48 modem lines. Like an Out
>of Service switch.
>

Yes. Busy-out can be accomplished manually or each DSP can make itself
busy-out, if it fails an automatic self test. The auto self test is run at
initial power up, and after the termination of every call.

>3. On a ISDN PRI system, is each of the 48 line a dual purpose line.
>(i.e. user will dial into the same group of phone number for ISDN or
>analog modem service.)
>

Yes. We can handle modem, ISDN or even voice-over-isdn calls on the same
*single* phone number.

>4. How do you handle the ISDN PRI which has only 23 B channel and one D
>Channel. Will I only get 46 user into a PM3 at the same time.
>

The PM3 support 23B + 1D on each PRI line. So you are correct in assuming we
support 46B + 2D on the two port unit.

--Marty
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