Dear YLs and OMs,
I have installed a SIP service on sipwise.ampr.org.
It allows SIP users to do voice & video calls, instant messaging (via SIP), screen sharing, etc. There is also support for voicemail, call forwarding and call forking (upto 5 user-agents (devices, softphones, etc) per account).
The system accepts calls from outside, try sip:lx1duc@sipwise.ampr.org or sip:+883510001204400@sipwise.ampr.org. (I'm using iNUM numbers to provide a globally unique numeric identifier so that hardware phones can make calls to other stations as well, while it's possible to dial "lx1duc" from a numeric keypad, it's more convenient for the user to actually dial a number H-I-H-I.)
I'm using it on my mobile via a softphone right now (I didn't have time to configure my hardware phone), but the plan is to use it on hardware phones in our club shacks in LX.
You're welcome to test it and if you want/need your own account please contact me off-list.
I'm also interested in peering with other SIP services as well, so if you're running one and you're interested in peering, please contact me off-list.
73 de Marc, LX1DUC