I am not using the line port and was thinking about how I could put it to use. Over at MichiganTelephone's Blog I noticed in one of his posts he was wondering out loud about the same thing.
I can think of two uses.
1)
Door phones: which can open doors attached to an electric door strike. Found an example here (
http://www.homephone.com/index.html)
2) Skype adapter gateway. There are very few ways we can use Skype without having a computer on. I did find this phone which doesn't need a computer. However it is pricey. Philips VOIP841 PC-Free DECT 6.0 Wireless IP Phone
If you don't mind having a computer on there are more choices of adapters out there in the market place. I found these:
SkyLink Pro - USB Personal VoIP Gateway for Skype (
http://sewelldirect.com/SkyLink-Pro---USB-Personal-VoIP-Gateway-for-Skype.asp)
D-Link Skype USB Phone Adapter (
http://www.dlink.com/products/?pid=466)
Not an adapter solution, but requiring a dedicated computer or a virtual machine to run it. Consider an Asterisk PBX. PBX in a Flash Asterisk FreePBX (
http://pbxinaflash.net/) This version has a prebuilt Skype gateway which can be used as an extension connected to the Obi. We can use the Obi bridging features to connect to SIP accounts. PBX in a Flash version of Asterisk is very easy to setup by the average person.
Anyone else can think of an alternate use for that Line Port?