MLS Drop for SysAdmin wrote:
Has anyone successfully implemented concurrent appearance of the same PBX extension on multiple SIP phones?
When using Cisco 7960s under call manager, you can have several phones with the same line appearance, but the first user to seize a line makes it inaccessible to other phones.
Under SIP operation it seems as though this is not possible, but we don't see group ringing definable for SIP extensions.
It is my understanding that Cisco didn't bother implementing this functionality into their SIP firmware. However, as you have described, this feature does work when using CCM.
chan_skinny (and chan_sccp - which btw, will become the same channel driver soon) will eventually support this feature.
If you (anyone?) have any motivation for Theo and myself to make Asterisk's SCCP support go to the top of our to-do lists, please contact either one of us off-list.
Jeremy McNamara
The Cisco phones with SIP support this just fine; it's not a problem for the endpoints, it's a problem for the SIP registrar.
The phones will happily send out the same authentication name/password pair all day long to the server. The server must be smart enough to then map those multiple registrations to a single "number." Asterisk does not support this feature at this time.
If you want to use this trick, try SER, as I have had multiple devices with the same registration data register against SER. When an INVITE is passed into the system, all the phones automatically ring and the first pickup gets the call.
Typically, you'd want to do this type of multi-number mapping back on the server, anyway - it's not a good idea to have multiple endpoints registering with the same auth data, but you can do it if you really, really want - just not with Asterisk.
JT
_______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
