TODO: added emergency mode proposal

Collected emergency-related features into one section.

TODO

@@ -510,8 +510,30 @@ Sim Toolkit
   Owner: Kristen Carlson Accardi <kristen@linux.intel.com>
 
 
-Miscellaneous
-=============
+Emergency Calls
+===============
+
+- Modem Emergency mode.  Support network registration and online/offline
+  mode during the emergency calls and related network activity (e.g.,
+  network-initiated location request via supplementary service channel).
+
+  Proposed solution is to introduce a new Emergency boolean property to the
+  Modem D-Bus interface and new functions to modem interface:
+
+  - ofono_modem_emergency_mode_inc()
+  - ofono_modem_emergency_mode_dec()
+  - ofono_modem_emergency_mode_get()
+  - ofono_modem_add_emergency_mode_watch()
+  - ofono_modem_remove_emergency_mode_watch()
+
+  When emergency mode is requested, modem is set to online (if needed) and
+  the watchers are notified. There can be multiple parties requesting
+  emergency mode.  When all of them have completed the emergency-related
+  operation and called ofono_modem_emergency_mode_dec(), modem is set to
+  offline (if needed) and the watchers are again notified.
+
+  Priority: High
+  Complexity: C2
 
 - Country / Operator specific emergency numbers.  Figure out how to support
   countries / operators with specific mandated emergency numbers which are
@@ -520,8 +542,25 @@ Miscellaneous
   assumed to be managed by the modem.  If no such functionality is available,
   then the 3GPP mandated behavior is used.
 
-  Complexity: C2
   Priority: High
+  Complexity: C2
+
+- Network updating the emergency number list. Support the list of emergency
+  numbers dynamically updated by the network.
+
+  Priority: High
+  Complexity: C2
+
+- Extend the voicecall interface with a property indicating whether this call
+  is an emergency call (essentially the CLI matches one of the numbers on the
+  emergency calling codes list.)
+
+  Priority: High
+  Complexity: C1
+
+
+Miscellaneous
+=============
 
 - Bluetooth SAP Client support.  The Telit UC864-G devices support Bluetooth
   SAP client mode.  This requires the use of a modem side-channel to read the
@@ -586,13 +625,6 @@ Miscellaneous
   Priority: High
   Complexity: C1
 
-- Extend the voicecall interface with a property indicating whether this call
-  is an emergency call (essentially the CLI matches one of the numbers on the
-  emergency calling codes list.)
-
-  Priority: High
-  Complexity: C1
-
 - TTY (hearing impaired) support.  Add a new oFono atom type that will enable
   the user to enable or disable the TTY support on the modem.  Support for
   automatic detection of TTY (signaled by the driver) is also desired.