Hello I've been using PLANET IP Phones (PLANET VIP-254PT) in my office and at home. I've been using basically only "the IP" for VoIP connection over the LAN (never used or subscribed to any VoIP service provider or something similar, because there's no need) I use Dynamic DNS service and STUN Server for VoIP over Internet (again, no need to use any VoIP service provider or something similar, because there's no need) and assign several different port numbers (like 5060, 5061...) if I'd like to make several IP Phones inside the LAN reachable from the Internet. So far so good. But lately a need has arisen to forward the calls coming to my PSTN line to these IP Phones. To set it up, I bought 1 second hand (unlocked) Linksys SPA 3102 and 1 SPA 2102 . After tinkering with them for several hours I noticed that their settings are more complex than PLANET's, especially the thing called "dial plan" Now before I 'm able to make a PSTN to Ethernet connection, I'd like to make a simple VoIP call from SPA 2102 to one my VIP-254PT phones, by directly dialling the IP # of VIP-254PT or vice versa but this cannot be done! Both phones are on the same LAN. SPA2102 ATA IP is: 192.168.1.202 SIP Port #: 5060 Router >> Internet Connection Settings Connection Type: Static IP: 192.168.1.202 & LAN Networking Service: Bridge. Voice >> Line 1 >> Make call without reg: yes Ans w.o. reg: yes, Enable Ip Dialling: yes, User ID: SPA2102 Dial Plan : I have left this section empty as I don't know the details. VIP-254PT IP is: 192.168.1.221 SIP Port #: 5060 Under this setup when I dial 192*168*1*202# the VIP-254PT display says "unknown number" So something's missing on SPA 2102 most probably the Dial Plan string. I think I have to form my own string there. How to form it? I'd like to make it such that SPA2102 will allow every IP Phone on the LAN (and preferably on the Internet, too) Thanks.