I configure CUCM 7.1.(3b) everything is ok . The IP PHONE registed like 7911 7940 7960 7970 and 7942G. The matter is the ip phone 7942G and 7970 can only make an internal call . The 7942G and 7970 have On the Calling Search Space Configuration ''FULL ACCESS'' it's mean all the destinations. It's only the 2 phones who can't make outgoing call . All of IP PHONE (7911 7940 7960 ) can make outgoing call to all the destinations. I don't undrestand why? Can you Help me please to resolve this matter?