You can restrict internal traffic with ITR groups - internal traffic restriction.

An extn’s ITR group is specified in SCSU/SBCSU. Default is 0 but it can be 0-15. By default all ITR groups can talk to all the other ITR groups.

If you place the extn in a different ITR group you can restrict traffic with VBZ amo. You can block one way or both, I.e. 0 to 1 and also 1 to 0.

You change LCSOV to restrict outgoing external calls.

To put the extension into an ITR group
CHA-SBCSU:STNO=XXXX,ITR=15;

To stop ITR 15 from calling to others AND to stop others calling it.

In this example only some extensions are allowed to contact
the Extension 1234.
Called Extension: CHA-SCSU:STNO=1234,ITR=15;
Calling Extension(s): CHA-SBCSU:STNO=xxxx,ITR=1;
As you can see from the VBZ Matrix below only extensions in ITR1 (and ITR15)
can call to ITR15 - other extensions will get number unobtainable.


REG-VBZ;
H500: AMO VBZ STARTED
CHANGE-VBZ:0&&15,AX,0&&15,;
CHANGE-VBZ:0,DX,15,Y;
CHANGE-VBZ:2,DX,15,Y;
CHANGE-VBZ:3,DX,15,Y;
CHANGE-VBZ:4,DX,15,Y;
CHANGE-VBZ:5,DX,15,Y;
CHANGE-VBZ:6,DX,15,Y;
CHANGE-VBZ:7,DX,15,Y;
CHANGE-VBZ:8,DX,15,Y;
CHANGE-VBZ:9,DX,15,Y;
CHANGE-VBZ:10,DX,15,Y;
CHANGE-VBZ:11,DX,15,Y;
CHANGE-VBZ:12,DX,15,Y;
CHANGE-VBZ:13,DX,15,Y;
CHANGE-VBZ:14,DX,15,Y;
CHANGE-VBZ:15,DX,0&1&2&3&4&5&6&7&8&9&10&11&12&13&14,Y;

Dear Thakur

Seems you are from india.. ya

As suggest above do follow

1) Change in Locsv- for outgoing barred
2) Change in ITR and VBZ - or internal barred.

Keep in touch:- lalitsankhla@yahoo.com

Regards
Hello ,You can dicuss with me for Hipath 3k and Hipath 4K

thanks for ur reply ,but my client has some weird requirements ,they want to block calling from key pad and allow calling through dss key which we can configure on soft keys,one more thing is theRE ANYWAY TO LOCK optipoint 500 standard phone with code key ??i tried *66 for and #66 but not working

To be able to do that (dial only from dss keys) you would have to setup keysystem functionallity
That would allow you to dial out on behalf of another user and that user would be allowed to dial the destination.