Hello,

AVPs are special variables that are attached to SIP transactions.

It is R/W variable (you can assign values to it directly in configuration file).

Call scenario:

Alice calls Bob.

Here I set the AVP:

route[REQINIT] {

if (is_method("INVITE")){

$avp(ICID_AVP) = $hdr(P-Charging-Vector);

}

Receiving 200 Ok at onreply_route[term_reply] { } I can access the AVP.

Other scenario:

Alice calls Bob. Alice cancels the call. In this case I can’t access the AVP.

route[term_subsequent] {

if (is_method("CANCEL")){

if (t_lookup_cancel()) {

xlog("L_INFO", "INVITE transaction exists");

xlog("L_INFO", "ICID_AVP [$avp(ICID_AVP)]\n");

} }

}

2023-03-23T09:11:56.332778+01:00 172.29.21.53 vict2-scscf[44536] - [logSDID@20306 resource="xlog"] INFO: <script>: INVITE transaction exists

2023-03-23T09:11:56.333292+01:00 172.29.21.53 vict2-scscf[44536] - [logSDID@20306 resource="xlog"] INFO: <script>: ICID_AVP [<null>]

What could be the problem?

Thanks!

Theo