International Accounting for the Use of the Signal Transfer Point and/or Signalling Point for Relay in Signalling System No. 7 - Series D: General Tariff Principles General Tariff Principles - Charging and Accounting Principles for International Telecommu
The ITU-T, considering that in Signalling System No.7, the signalling need not follow the same path as the traffic, but may be routed via an STP/SPR provided by a third Administration; that in SS No.7 user-to-user information and Administration data is be passed over the signalling system in addition to call control data.