Product & Solution > Overview > CDMA Solution  >  Services > Call Keeper
     
Call Keeper missed call notification service by SMS/Web/ARS when the subscriber becomes available to call. If a subscriber phone is powered off, busy, or out of coverage, Call Keeper service can save outgoing number in the Call Keeper System, and send SMS when a subscriber's mobile phone is powered on, and retrieve calling number history via web.



Storing of missed call numbers
Notification of missed call numbers through SMS
Notification of the change in the called subscriber state to the caller
Voice-mail conversion
Interworking with billing server
Interworking with existing network