Wholesale Calls Product Handbook v4.1
British Telecommunications plc Page 36 of 47
March 2009
6. CALL BARRING PRODUCTS
CPs can place and remove products that restrict the calling options available to a
CLI.
The five call barring options available are:
• OCB (Outgoing Calls Barred)
• RTN (Route to Number)
• PRS (Premium Rated Services)
• MOB (Mobile only)
• INT (International)
The first two, OCB and RTN, are provided to enable CPs to take responsibility for
their own credit and debt management.
RTN will only work on BTR lines. RTCC is the equivalent service for WLR and is
delivered by Openreach. For Further info on RTN please refer to the Call Barring
(Debt Management).
For further info on RTCC please refer to the Openreach website –
www.openreach.co.uk
The final three, PRS, MOB and INT, can also be used as a form of debt management
by CPs, but they are primarily anticipated to be offered to the EU as a method of
restricting their own usage.
Please see the Call Barring User Guide for further details:
www.btwholesale.com/wholesalecalls
