[Asterisk-Dev] SoftSwitch PRI inter-operability issue

[Paul Cadach]

Hello,

Nir Simionovich wrote:
>   We have an asterisk connected to a VERAZ SoftSwitch via E1 PRI.
> I've received a question regarding the flavour of the PRI implemented,
> be it an ETSI flavour or an ITU flavour.

Asterisk supports both ETSI and ITU variants of Q.931.

>   Anyone has a detailed answer? the differences between the 2 flavours
> in general would also help out.

Differences between ETSI and ITU (Q.931) variants described in ETSI's EN 300 403-1 could be freely downloaded from
ETSI's web site.


WBR,
Paul.