Thank you Daniel!! I've removed the 0x04 flag and now works great!! Cheers, Marino On 03/11/15 17:30, Daniel-Constantin Mierla wrote: Hello, On 03/11/15 11:29, Marino Mileti wrote: I would like to avoid multiple registration with the same AOR... I know that there's a parameter for this (max_contacts) but if I set it to 1, all REGISTER overwrite location info. max_contacts will reject new registrations/contacts if there is already a valid contact in the location table. A flag as second parameter to save(...) is the option to overwrite existing contact with the one from current registration request. Cheers, Daniel Instead i would like to reply with error if a REGISTER arrive with the same AOR just registered on location server. Is that possible? Any help is appreciated J Marino Maria Mileti marino.mileti(a)alice.it cid:006a01cb6b0e$67eecdae$_CDOSYS2.0Reduce your energy consumption and keep polar bears on ice! _____ <https://www.avast.com/antivirus> Avast logo Questa e-mail è stata controllata per individuare virus con Avast antivirus. www.avast.com <https://www.avast.com/antivirus> _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Book: SIP Routing With Kamailio - http://www.asipto.com Kamailio Advanced Training, Nov 30-Dec 2, Berlin - http://asipto.com/kat --- Questa e-mail è stata controllata per individuare virus con Avast antivirus. https://www.avast.com/antivirus