Free SIP based VoIP Service From OpenSIPS

Free SIP Accounts 
OpenSIPS will be present at Astricon, and all the links at the end of the post snapvoip.blogspot.com
Now I can add another Free SIP Account provider Free SIP Account Provider List 2013 to the list as OpenSIPS is providing a free VoIP Service with support from Voice Systems.
The service is a full blown residentioal like service and provides an opensips.org SIP address and enables to place VoIP calls to any SIP network.
current features include;

Calling

• aliases
• speeddial
• DND service
• anonymous and anonymous blocking
• click to call from web interface

Call forwarding (on server)

• permanent forward
• forward on not registered
• forward on timeout (not available)
• forward on busy

Call filtering

• inbound and outbound call filtering
• white/black lists approach
• reg exp based filtering

IM

• end-2-end messaging
• message storing on server if off-line
• read/delete off-line messages from web.

Presence

• presence server
• XCAP support (optional)
• view presence status via web interface

Phonebook

• click to call from web interface
• IM from web interface
• search users in white pages

CDRs

• incoming call records
• outgoing call records
• missed call records 

and conferencing and voicemaill will be following up soon.
I have registered myself and it was painless two minute affair.
To register for a new account follow this link
Information on Astricon Presence