Add config to detect e-call call based on dialed sim emerg # list.

We normally use the combined emergency number list from the emergency
number lists of both sims when placing emergency calls, with the provision
that the routing may be unspecified if a dialed number is an emergency
number on one sim but not the other.

This config allows a carrier to mandate that calls are only treated as
an emergency call on their network based on their own emergency number
list.

Test: TBD
Bug: 203947159
Change-Id: Id5cd4123f1bb7bdd85e564fc6997dfbc50652a5f

1 files changed, 16 insertions, 0 deletions

diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index 68ef7543c33f..45fd7a3467c4 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -963,6 +963,21 @@ public class CarrierConfigManager {
             = "carrier_use_ims_first_for_emergency_bool";
 
     /**
+     * When {@code true}, the determination of whether to place a call as an emergency call will be
+     * based on the known {@link android.telephony.emergency.EmergencyNumber}s for the SIM on which
+     * the call is being placed.  In a dual SIM scenario, if Sim A has the emergency numbers
+     * 123, 456 and Sim B has the emergency numbers 789, and the user places a call on SIM A to 789,
+     * it will not be treated as an emergency call in this case.
+     * When {@code false}, the determination is based on the emergency numbers from all device SIMs,
+     * regardless of which SIM the call is being placed on.  If Sim A has the emergency numbers
+     * 123, 456 and Sim B has the emergency numbers 789, and the user places a call on SIM A to 789,
+     * the call will be dialed as an emergency number, but with an unspecified routing.
+     * @hide
+     */
+    public static final String KEY_USE_ONLY_DIALED_SIM_ECC_LIST_BOOL =
+            "use_only_dialed_sim_ecc_list_bool";
+
+    /**
      * When IMS instant lettering is available for a carrier (see
      * {@link #KEY_CARRIER_INSTANT_LETTERING_AVAILABLE_BOOL}), determines the list of characters
      * which may not be contained in messages.  Should be specified as a regular expression suitable
@@ -5230,6 +5245,7 @@ public class CarrierConfigManager {
         sDefaults.putBoolean(KEY_CARRIER_IMS_GBA_REQUIRED_BOOL, false);
         sDefaults.putBoolean(KEY_CARRIER_INSTANT_LETTERING_AVAILABLE_BOOL, false);
         sDefaults.putBoolean(KEY_CARRIER_USE_IMS_FIRST_FOR_EMERGENCY_BOOL, true);
+        sDefaults.putBoolean(KEY_USE_ONLY_DIALED_SIM_ECC_LIST_BOOL, false);
         sDefaults.putString(KEY_CARRIER_NETWORK_SERVICE_WWAN_PACKAGE_OVERRIDE_STRING, "");
         sDefaults.putString(KEY_CARRIER_NETWORK_SERVICE_WLAN_PACKAGE_OVERRIDE_STRING, "");
         sDefaults.putString(KEY_CARRIER_QUALIFIED_NETWORKS_SERVICE_PACKAGE_OVERRIDE_STRING, "");