[Asterisk-Users] Asterisk testbed for teaching connecting to a PRI-ISDN

[Antonio Rabena]

You need an E1 back-to-back cable.

Regards,

antonio

Francesco Delfino wrote:

> Hi,
> I would like to realize a voip testbed that should simulate the scenario
> in which two companies have an asterisk PBX connected through a PRI-ISDN
> to the Telco operator.
> I have no experience of T1/E1 connection but I think that the above
> could be relized with 3 asterisk boxes equipped with Digium TE405P cards.
> One of the box will represent the Telco, the other two, the two
> companies PBX.
> I would like to know if it is needed something between the point-point
> connections or it is possible to just cross-connect them.
> I need the testbed to be representative of the real-world difficulties
> in putting on an Asterisk BOX for connecting to a PRI-ISDN: is other
> hardware needed (e.g. echo cancellers or failover switches)?
>
> Asterisk BOX (Simulate the Telco)
> with Digium TE405P
>   |                   \
>   | E1                 \  T1
>   |                     \
> [What to put here?]   [What to put here?]
>   |                       \
>   | E1                     \ T1
>   |                         \
> Asterisk BOX (Company)   Asterisk BOX (Company 2)
> with Digium TE405P       with Digium TE405P
>
>
> Regards,
>    Francesco Delfino
>