[SR-Users] Concatenating strings in $hdr

[David Cunningham]

Hello,

I'm having an issue where this doesn't work:

#!trydef PRODUCT "Foo"

if( $hdr("X-" + PRODUCT + "-Transport") != "" ) {
    add_uri_param( $hdr("X-" + PRODUCT + "-Transport") );
}

It seems Kamailio doesn't like the concatenation within the $hdr().
Concatenation does work in other places though:

append_hf( "X-" + PRODUCT + "-Transport: tcp\r\n" );

Can anyone advise how to make the concatenation within $hdr() work?
Thanking you in advance.

-- 
David Cunningham, Voisonics Limited
http://voisonics.com/
USA: +1 213 221 1092
New Zealand: +64 (0)28 2558 3782
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-users/attachments/20190725/1a14f5a7/attachment.html>