someone here in our office was saying you can extract this out of the modem after and during the call. Consult your modem manual for specific directions, but I think they said it was at&v1 - jared On Thu, Sep 10, 1998 at 03:09:45PM -0400, Robert E. Seastrom wrote:
RBS is often run on B8ZS/ESF too.
The reason it is not commonly run on inter-office trunks is because of a remarkable new innovation called SS7. Perhaps you have heard of it.
Anyway, since the bits in robbed-bit signaling are "robbed" from the superframe not from your DS0, it is irrelevant to your throughput.
From: Chad Skidmore <cskidmor@nwnexus.net>
RBS is often times run on on AMI D4 circuits. Also, RBS is generally not run on inter-office trunks.
At least that was the case a few months ago when I worked on a DMS-500.
From: Robert E. Seastrom [mailto:rs@bifrost.seastrom.com] of course, robbed bit signalling and AMI have nothing to do with one another...
From: Chad Skidmore <cskidmor@nwnexus.net>
Try making an ISDN call from one to the other at a 64k rate. If you can get through then there are at least some trunks setup as ESF B8ZS clear channel. I suspect that they are probably some older trunks running AMI D4.
From: Dan Hollis [mailto:goemon@sasami.anime.net]
Is there any way to determine if inter-telco links are using robbed bit signaling? Eg from GTE to USwest in the Seattle area.
I suspect RBS may be causing lots of v.90 problems in GTE country in Seattle. But id like to know how to confirm this. And just maybe, get it fixed.
-- Jared Mauch | pgp key available via finger from jared@puck.nether.net | http://puck.nether.net/~jared/