LAN only SIP software? This topic has 0 replies, 1 voice, and was last updated 17 years, 1 month ago by Chris. Viewing 1 post (of 1 total) Author Posts 16th September 2007 at 08:20 #31540 ChrisGuest I have some D-Link DPH-120S Voip phones that I use just for calling within my private LAN by entering the IP address. Is there any software, preferrably for a Mac, that can talk to these phones without signing up for a SIP service? Author Posts Viewing 1 post (of 1 total) The forum ‘Voice over IP’ is closed to new topics and replies.