Hello, before any major release of kamailio (openser), we install and run it live on voipuser.org sip service. It runs there for more than two weeks now, it even survived a 18 hours scan attack (approx 12.5 mio requests "with love from Latvia" - I will write an article about it), so it looks very solid. However, there are two features were enabled for this version and are not really heavily used yet: tls and presence/xcap. So if you don't plan to test by yourself a local instance of version 3.1 and have time, then maybe you can help by registering some phones at voipuser.org and play a bit there -- it will be very appreciated to report if works for you. If you dont have an account there or don't know about it, some details here: VoIPUser.org is hosting also our kamailio (openser) forum for many many years now, the service is open and free, when you register at http://www.voipuser.org for the forum, you get a sip account as well (there are some goodies included, like incoming UK did and INUM). For tls: - just configure your phone to use tls - if you need it, the port for tls is 5061. For example, with snom 370 you have to set the outbound proxy address to: sip.voipuser.org;transport=tls. For presence/xcap: - you can test if you have clients supporting SIMPLE presence in Presence Agent mode (not end-to-end mode) - the embedded xcap server is enabled, you have to set the xcap root url to http://sip.voipuser.org:5060/xcap-root or https://sip.voipuser.org:5061/xcap-root . Authentication for xcap service is done using same sip username and password Thanks, Daniel -- Daniel-Constantin Mierla http://www.asipto.com