Try:

$var(x) = “x” + y + z;
$hdr($var(x));

Sent from mobile, with due apologies for brevity and errors.

On Jul 24, 2019, at 11:41 PM, David Cunningham <dcunningham@voisonics.com> wrote:

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
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