On Tue, 2011-09-20 at 11:26 +0200, Olle E. Johansson wrote: > 18 sep 2011 kl. 22:23 skrev Catalin S.: > > > Hello Eric, > > > > Is about outgoing calls from multiple devices with the same username at > > aprox same time. The overwritten is for incomming calls. I want to prevent > > using the same account in multiple devices at same time. The solution with > > IP will not apply because users may be behind nat or will change everytime > > multiple access points. Do you have any other clues? > > There is no real good way to prevent this. How can Asterisk now which > registration that is the valid one? If a device reboots and gets a new IP > from DHCP, we do not want to prevent that new registration to prevent the old > one from another IP, but the very same device. There's no device ID used in > the registration, only the SIP account. > > This also applies to OpenSER/kamailio/OpenSIPS. We can prevent multiple > simultaneous registrations in those, but that will also mean that phones that > reboot will be blocked until all registrations expire in the server. > > /O > > ---- > Edvina SIP Masterclass covering SIP, Asterisk & Kamailio - Oxford, UK, Nov > 7-11. * http://www.telespeak.co.uk > -- Surely the only way to prevent this is tight control of the usernames and passwords, i.e. configuring all devices yourself without the user(s) knowing what the un/pass for them are. Is there a good reason you can't do this?
Regards Ish -- Ishfaq Malik Software Developer PackNet Ltd Office: 0161 660 3062 -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
