:-) If the FS instance is registering with the provider, their registrar may be doing the very RFC-compliant thing of sending the original AOR contact binding in the RURI, e.g. something like sip:line1@my.ip. However, any origination ITSP should be able to override this and put the dialed number in the RURI instead. -- Alex Balashov | Principal | Evariste Systems LLC 1447 Peachtree Street NE, Suite 700 Atlanta, GA 30309 United States Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ Sent from my BlackBerry. Original Message From: Luis Daniel Lucio Quiroz Sent: Friday, April 29, 2016 09:14 To: FreeSWITCH Users Help Reply To: FreeSWITCH Users Help Subject: Re: [Freeswitch-users] "To field" in sip header