[Asterisk-Users] That is not a valid conference number meesage

[Andy Hester]

I've just started trying to use this functionality and I get the invalid
conference number message.  Any ideas?

I started out with:

exten => 7315,1,Meetme,1234

and

confno = 1234

and then tried:

exten => 7315,1,Meetme

and

confno = 1234

and enter 1234 at prompt.

All give the same message.