[asterisk-users] Dahdi, b410p and looping from 1 port to another

[Kevin P. Fleming]

Olivier wrote:

> Doc says it should be turned on "in those instances where a BRI is
> daisy-chained and terminated on the B410P in NT mode".
> So after reading this again, I would I should have turned it on.
> 
> Do you agree ?
> 
> B410P card1 - port1 - TE mode  <------> B410P card2 - port1 - NT mode
> <------> B410P card2 - port2 - NT mode

Your diagram does not make any sense. You show three ports being
connected together, with two of them in NT mode. This is not possible,
only one device on a multipoint BRI can be NT, the rest must be TE. Yes,
if you really are connecting ports this way, the port in NT mode (really
one of the ports, but it's easiest to just use the NT mode port) should
be set to terminate the line.

However, chan_dahdi + wcb4xxp + libpri do not currently support NT
point-to-multipoint mode anyway, so this configuration cannot work with
the current code.

-- 
Kevin P. Fleming
Director of Software Technologies
Digium, Inc. - "The Genuine Asterisk Experience" (TM)