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Android - Phone Calls

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Android - Phone Calls

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Android - Phone Calls

  1. 1. Android – Phone Calls Yong Heui Cho @ Mokwon University Some of slides are referred to: [1] Android Radio Layer Interface, slideshare.
  2. 2. 2 Smart Device Structure 5. Android – Message 6. Android – BroadcastReceiver 7. Android – Phone Calls 8. Introduction to IoT
  3. 3. 3 android.telephony
  4. 4. 4 Radio Interface Layer • RIL – Abstraction layer between Android telephony service and radio HW – Components: RIL daemon, vendor RIL solicited unsolicited
  5. 5. 5 □ Courtesy to Android Radio Layer Interface, slideshare. Android RIL stack
  6. 6. 6 RIL Components • RIL daemon – The RIL daemon initializes the vendor RIL, processes all communication from Android telephony services, and dispatches calls to the vendor RIL as solicited commands. • Vendor RIL – The radio-specific Vendor RIL of ril.h that processes all communication with radio HW and dispatches calls to the RIL daemon (rild) through unsolicited commands.
  7. 7. 7 RILD Internal Structure

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