[Asterisk-Users] interop problem: "Missing handling for mandatory IE 24 (cs0, Channel Identification)"

[Deti Fliegl]

Hi,

> < Message type: SETUP (5)
...
> XXX Missing handling for mandatory IE 24 (cs0, Channel Identification) XXX

According to ETS 300 102 (the european ISDN specification), section 
3.1.16 a SETUP message must contain an IE 'Channel Identification' which 
is mandatory for network to user direction (see note 4 of table 3.16).

Seems that you have to change the setup of your Avaya system. For e.g. 
try changing network and user mode or configure a SIP-trunk if your 
Avaya-PBX supports it.

Deti