exten => 222,1,Set(MEETME_EXIT_CONTEXT=addmember)
exten => 222,2,MeetMe(9000|srX)
exten => 222,3,Hangup()

[addmember]
exten => #, 1, Dial(SIP/1301XXXXXXX@sip.broadvoice.com,20,G(addmember,#,2))
exten => #, 2, Meetme(9000|sX)
exten => #, 3, Meetme(9000|srX)