I'm going to develop app that will need to detect the caller number and be able to drop the call. I've got several various j2ee midp2 enabled phones I want to use for this, but I can't find j2me API that is able to provide me the caller number and/or manage the call state (drop it).
On Android there is PhoneStateListener, so app can listen to incoming calls and deals with it.
Since the application is not for resale / distribution (I am not bound to mobile phones but only to the GSM network) I can use also some reasonably priced industrial-grade solution too.
So the Q is: is there any possibility to detect caller details in j2me or I just have to trash all my available Nokia phones and buy some low-end Android stuff instead?
currently, low-end Android stuff seems like the way to go.
The Mobile Telephony API allows java applications to access call-related functionality such as:
- Initiate voice and emergency calls
- Receive/accept an incoming call
- Control and end an existing call
- Receive event notifications of call state changes
- Receive event notifications of network state changes (e.g. roaming to a different network)
- Access network information such as Network ID and "Network Selection Modes"
- Use supplementary services such as multiparty calls, and call forwarding
- Get status information about supplementary services
- Activate/deactivate supplementary services
- Send/receive Unstructured Supplementary Service Data
- Manage call-related phone and user parameters such as "Phone Identity Presentation Restriction" or "User Group"