IamaSherpa
Instructor
System A is R11.x connected via SIP Trunk to system B as R9.x where ISDN BRIs should be used to dial out, the dialling is rejected from the system B because "A" users are not recognized (correct), I remember a trick in case of R11 to R11 (use the PAI settings) but the R9.0 does not allow those settings, how to?