| 摘要 |
<p>A method for inter-domain roaming between a home network H-PLMN provided with a circuit switched over packet switched CSoPS interworking function IWF and a visited network V-PLMN supporting SRVCC mechanisms, said method comprising providing parameters (STN-SR) to the visited network, using HSS of the home network, to allow contact between MSC of the visited network and home network located MSC; said method being characterized in that it comprises the following steps:
- anchoring voice call in home network using CSoPS IWF and MSC+ in the home network;
- triggering handover using Sv interface from EPC to MSC in visited network;
- switching between CSoPS and CS access legs in home network for call continuity.</p> |
