Hi all, How would I go about setting FS up so that I can register internal extensions (not NAT'ed) and external ones (invariably NAT'ed) to the same domain? I will keep the external profile just for outbound trunks so should not need to change that other than forcing sip-ip and rtp-ip to the DMZ IP. I thought of setting up a third profile (eg, external_phones) and setting the appropriate sip-ip and rtp-ip on all profiles. However sorting out the domain confuses me. Would I need to set for instance: <param name="manage-presence" value="passive"/> <param name="dbname" value="share_presence"/> <param name="presence-hosts" value="$${domain}"/> <param name="challenge-realm" value="$${domain}"/> <param name="force-subscription-domain" value="$${domain}"/> <param name="force-register-domain" value="$${domain}"/> <!--all inbound reg will stored in the db using this domain --> <param name="force-register-db-domain" value="$${domain}"/> On the external_phones profile to ensure that external devices register to the same domain as internal ones and share presence/registration info? Cheers Alex -- This message is intended only for the addressee and may contain confidential information. Unless you are that person, you may not disclose its contents or use it in any way and are requested to delete the message along with any attachments and notify us immediately. "Transact" is operated by Integrated Financial Arrangements plc Domain House, 5-7 Singer Street, London EC2A 4BQ Tel: (020) 7608 4900 Fax: (020) 7608 5300 (Registered office: as above; Registered in England and Wales under number: 3727592) Authorised and regulated by the Financial Services Authority (entered on the FSA Register; number: 190856)