[Linphone-developers] How to Implement Presence using Phone book's number in iPhone ?

[Maulik]

Hello,

I wanted to implement Presence using phone book's contact of iPhone. I wanted to show whether the contact number is on our SIP network or not ? 

What I have done so far is :

1) I am reading each contact from phone book and send subscription request 

LinphoneFriend* linphoneFriend = linphone_friend_new_with_addr([sipUri UTF8String]);

                            

if (!linphone_friend_in_list(linphoneFriend))

{

          NSLog(@"Contact %@ not in linphone friend list, subscribing....", number);

          NSLog(@"Subscribing To .... %@", sipUri);

          linphone_friend_enable_subscribes(linphoneFriend,TRUE);

          linphone_friend_set_inc_subscribe_policy(linphoneFriend,LinphoneSPAccept);

          linphone_core_add_friend([LinphoneManager getLc],linphoneFriend);

}

and get callback by :

static void notify_presence_recv_updated (LinphoneCore *lc,  LinphoneFriend *friend)

{

    //const LinphoneAddress* friend_address = linphone_friend_get_address(friend);

    [[NSNotificationCenter defaultCenter] postNotificationName:kLinphoneFriendStatusUpdate object:[NSValue valueWithPointer:friend] userInfo:nil];

}

but callback doesn't work each time I changed the status by :

linphone_core_set_presence_info([LinphoneManager getLc],0,NULL,LinphoneStatusOffline);

It only get called when I logged in successfully.

Any suggestions to implement it through easy and efficient way ?

Thanks