[asterisk-users] libpri : Q.931 Called Party Number interpreted as empty

[giovanni.v]

On 02/11/2011 18.45, Olivier wroteo:
> 1. As the above line comes from libpri, how can one be certain the telco
> side didn't send the weird NUL byte  ?

Assuming libpri debug doesn't mess nothing is quite sure the NUL come in 
from the telco.

> 2. Anyway, as Q.931 allows any IA5 (ISO 646) character, libpri should
> notify sysadmin for every non-IA5 character received

But NUL is an IA5 character, so I think must be handled like any other one.
- http://skew.org/iso-ir-001/