IMP
Messaging Application Server
A Messaging application server such as an IMP (Instant Messaging Platform) is used to provide support for legacy SMS services, as well as next generation messaging services based on RCS (Rich Communication Services) standards. Key features will include text and multimedia messaging, 1 to 1 chat, group chat delivery, display notifications and multidevice support. In addition, a common message store facility may also feature as a service offered to customers. Messaging sessions will be based on a combination of SIP (Session Initiation Protocol) and MSRP (Message Session Relay Protocol).