Call Blocking Call Blocking Jackson90 (TechnicalUser) (OP) 2 Dec 16 18:50 It appears on a version 6 switch ive taken over we are unable to divert an internal extn to a mobile. it appears it is blocked somewhere on the switch. does anyone know how I can change this so that a caller from there mobile calling extension 1234 on DDI would then be routed to a mobile number? thanks RE: Call Blocking thepfy (IS/IT--Management) 13 Dec 16 12:24 Does the extension have a class of service with EDV (External diversion) allowed? (LCSD xx) I would only have EDV enabled on the phones which actually need it. There is the risk of fraudulant calls. Is trunk to trunk transfer allowed? (LTTA). RE: Call Blocking ghmids (MIS) 2 Apr 17 20:31 Does the extension you are trying to divert from, have the ability to dial mobile numbers ?