I am working on Siemens machinary. When GPRS enable in MS then at some sites even if subscriber is in good coverage , the calling party gets “switched off or not reachable” announcement. When we Disable GPRS in our MS then this problem reduce. Can anyone suggest a solution ?
This problem occurs in case, that subscriber just downloading some data. In this case MS can’t list paging channel. Mobile class B could simultaneous execution of signaling for both CS and GPRS operation is possible. And GPRS traffic will be suspended during a pending or an established CS connection.