View source for Talk:WebAPI/WebTelephony

== Proposal for an improved and simplied Telephony API (José M. Cantera, Telefónica I+D) ==

[[Sensor API]]

navigator.telephony would return an object with the following interface

  interface Telephony : EventTarget {
    TelephonySession newSession(DOMString number); // Multiple number call??
    readonly attribute TelephonySession liveSession;
    attribute Function onincoming;
  }
  interface TelephonySession : EventTarget {
    readonly attribute DOMString originNumber;
    readonly attribute DOMString number;
    // Do the call
    void call();
   attribute boolean muted; 
   attribute boolean speakerOn;
   void startTone(DOMString tone);
   void stopTone();
   void sendTones(DOMString tones,
                  [optional] unsigned long toneDuration,
                  [optional] unsigned long intervalDuration);
    readonly attribute DOMString readyState; // "calling", "incomming", "connected", "closed", "busy"
    // Can we get info on when a call goes from "trying to place call" to "calling"?
    attribute Function onconnect;
    attribute Function ondisconnect;
    attribute Function onbusy;
    attribute Function onreadystatechange;
    void answer(); 
    void hangUp();
   }
  interface IncomingCallEvent : Event {
    readonly attribute TelephonySession session;
  }

== philikon's thoughts ==

* IMHO <code>navigator.telephony.dial("numbergoeshere");</code> is nicer than <code>new TelephonyCall("numbergoeshere");</code>
* We have a bunch of telephony-related functionality that's not reflected yet:
** controlling and reading radio power
** reading radio metadata (operator, signal strength, etc.)
** ...
* I would also suggest another readyState, <code>"dialing"</code> that comes before <code>"calling"</code> for outgoing calls.
* Nits: we should probably define the possible values for readyState on the interface (nit: for XHR they're ints, not strings... I like being consistent, but I also prefers strings... hmmm...). Also, event listener objects should probably be declared as <code>EventListener</code>.

My proposal on this (as a delta to the main proposal):

  interface Telephony {
    // ... all the stuff from the main proposal

    void power(bool on);
    
    TelephonyCall dial(String number);
    
    const String RADIOSTATE_UNAVAILABLE = "unavailable";
    const String RADIOSTATE_OFF         = "off";
    const String RADIOSTATE_READY       = "ready";
    
    const String CARDSTATE_NOT_READY      = "unavailable";
    const String CARDSTATE_ABSENT         = "absent";
    const String CARDSTATE_PIN_REQUIRED   = "pin_required";
    const String CARDSTATE_PUK_REQUIRED   = "puk_required";
    const String CARDSTATE_NETWORK_LOCKED = "network_locked";
    const String CARDSTATE_NOT_READY      = "not_ready";
    const String CARDSTATE_READY          = "ready";
    
    readonly String radioState;
    readonly String cardState;
    
    EventListener onradiostatechange
    EventListener oniccstatechange
    EventListener onsignalstrengthchange
    EventListener onoperatorchange
  }
  
  interface TelephonyCall {
    // ... all the stuff from the main proposal
    
    const String READYSTATE_DIALING   = "dialing";
    const String READYSTATE_CALLING   = "calling";
    const String READYSTATE_INCOMING  = "incoming";
    const String READYSTATE_CONNECTED = "connected";
    const String READYSTATE_CLOSED    = "closed";
    const String READYSTATE_BUSY      = "busy";
  }