[Serusers] Expressions in config file

[Sybren Stüvel]

Hi there,

Is there any way to use expressions in the route configuration? I'd
love to use something like:

if(uri=~"sip:([a-z])+ at thirdtower.com" && !lookup()) {
    seturi("sip:voicemail at thirdtower.com/$1");
}

Which would mean "if someone calls to "sip:someone at thirdtower.com" but
"someone" is unknown / unregistered, forward to
"sip:voicemail at thirdtower.com/someone".

Greetings,
Sybren
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