Hi David,

there is no magick with fs_path. fs_path contains value from Path header of a request which comes from sip proxy, i.e. kamailio. It means that replies and SIP requests from freeswitch to UAC will traverse SIP proxy which should be on the path.

For example,

Request: UAC ==> SIP proxy/load balancer ==> freeswitch box

Reply: freeswitch box ==> SIP proxy/load balancer ==> UAC

Request (INVITE): freeswitch box ==> SIP proxy/load balancer ==> UAC

Without path specified freeswitch will send direct messages to UAC:

Request: UAC ==> SIP proxy ==> freeswitch box

Reply: freeswitch box ==> UAC

This behaviour may be undesirable.

So SIP proxy inserts itself to Path header and freeswitch recognizes it and add fs_path tag to contact.

2017-01-05 6:14 GMT+02:00 David Villasmil <david.villasmil.work@gmail.com>:

Hello guys,

I've been wondering where the "fs_path" parameter comes from? How is it built, etc? I've been seeing cases where when the client has no "fs_path", fs can't find the user and returns temp unavailable...

Thanks all,

David

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--

С уважением,
Владислав Захожай

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