[SR-Users] Dialplan: using $avp("key") on subst rule with regexp capturing group

Hello,

I'm trying to use the dialplan with $avp("key") on match_exp and subst_exp but i'm getting an error message when there is a regex capturing group on subst_exp to be used on repl_exp

This is the config used:

modparam("dialplan", "match_dynamic", 1) $avp(s:PSTNAC) = "0";

Dialplan entry: dpid = 1 match_op = 1 match_exp = ^$avp(s:PSTNAC) match_len = 0 subst_exp = ^$avp(s:PSTNAC)(.*) repl_exp = 9\1

After executing dp_translate while the dialplan is properly matched the following error message occurs and the repl_exp didn't work as expected: ERROR: dialplan [dp_repl.c:422]: rule_translate(): illegal access to 1-th subexpr of subst expr (max 0)

I've tried some other dialplan entries like:

dpid = 1 match_op = 1 match_exp = ^$(avp(s:PSTNAC)[*]) match_len = 0 subst_exp = ^$(avp(s:PSTNAC)[*])(.*) repl_exp = 9\1

But that resulted in the same error message and no replacement either.

Any suggestion on what I'm doing wrong here?

Thanks,

Joao Arruda