< CME 4.1
Well, I think I might have worked out why we’re having transfer problems from external numbers, to a CME SIP phone via a normal CME SCCP phone on full-consult…
Only CME 4.1 supports the command set ‘voice register dialplan‘ – CME 4.0(2) doesn’t have such a command.
And there’s only one IOS that comes with CME 4.1, available for a 2811. And it’s an XJ3 release.. Is that more unstable than a T train? Probably, but I think I’m going to have to test it anyway!
Thankfully our second 2811 isn’t being used for anything other than a few SCCP phones at the minute. 