# Route & Record-Route module
Module depends on: None
Default: 1 (yes)
Desc: if turned on, request's from-tag is appended to
record-route; that's useful for understanding whether
subsequent requests (such as BYE) come from caller
(route's from-tag==BYE's from-tag) or callee
(route's from-tag==BYE's to-tag)
Desc: The function performs loose routing as defined in RFC3261.
See the RFC for more details.
Desc: If there are any Route HFs in the message, the function
takes the first one, rewrites Request-URI with it's value
and removes the first URI from Route HFs.
Params: lr - if set to 1, the function adds also lr parameter which
indicates loose routing support.
Desc: The function adds a new Record-Route header field. The
header field will be inserted in the message before any
other Record-Route header fields.