Free SIP service
There are 300434 users registered on this service.
Linphone.org is hosting a free SIP service allowing users to make audio or video calls using SIP addresses under the domain sip.linphone.org. You can create your own sip address like "sip:firstname.lastname@example.org" using the form below and being called by your friends using the sip address.
Technically, this service is running with a dual host, high available, Flexisip proxy server deployment.