Private Telecommunication Network (PTN); Signalling at the S-reference point; Generic feature key management protocol for the control of supplementary services
专用电信网(PTN);在S参考点发送信号;用于控制补充业务的通用特征密钥管理协议
Contains stage 3 of the generic feature key procedures for supplementary services at the S reference point. See ENV 41 005 for defintion of stage 3. See ENV 41 004 for definition of S reference point. To contain PICS proforma