[Asterisk-Users] E1 problems

[Martin Pycko]

But there were some ppl who did run E&M on E1. It was on the list, search
archives.

regards
Martin

On Wed, 3 Sep 2003, Steve Underwood wrote:

> Paulo Mannheimer wrote:
>
> >Hi,
> >
> >I'm testing an E1 with E&M signaling. Some of the problems I'm running
> >into are the following:
> >
> >1)	if I try to configure any channel above channel 15, I start
> >getting a "multiframe alignment error" on my telco test equipment. So I
> >have my zaptel file only configured for 15 channels, like this
> >
> >span=1,1,0,cas,hdb3
> >e&m=1-15
> >
> >2)	When the test equipment tries to send me a DTMF string, I only
> >get the first one.
> >
> >Any thoughts?
> >
> Is E&M designed to work with the E1 driver code? I think probably not. I
> had to fix some things to get proper access to the CAS signaling bits
> when I implemented MFC/R2. That makes me strongly suspect that nobody
> else has tried any form of CAS signaling with the E1 drivers. If you are
> using recent CVS code, the CAS bits certainly work for all time slots
> (they only worked for the first 15 before), but that doesn't mean that
> E&M will work. Note that E&M on E1s is implemented differently for just
> about every Telco that offers it.
>
> Regards,
> Steve
>
>
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