26 Jun
2014
26 Jun
'14
12:35 a.m.
Hi,
If I normally receive a INVITE that has a header 'aaa' with value 'bbb',
but it's possible that some INVITEs don't have this header.
How do I determine in the config file if the header exists?
To check the value of the header I do if($hdr(aaa) == "bbb"). But what if the
header doesn't exist?
Cheer,
Allen