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Пример iOS-приложения для аудиозвонков

На скриншотах, приведенных ниже, отображается интерфейс приложения перед совершением звонка.

В поле ввода 'WCS URL' указан адрес демонстрационного WCS-сервера wcs5-eu.flashphoner.com

В полях ввода 'SIP...' указываются параметры регистрации на SIP-сервере.
В поле 'Callee', указано имя вызываемого абонента.

Поле 'Invite parameters' предназначено для ввода дополнительных параметров сообщения SIP INVITE.

Соединение с сервером устанавливается при нажатии на кнопку 'Connect'. Звонок устанавливается/завершается по нажатию Call/Hangup, вводится в режим удержания либо выводится из него кнопкой Hold/Unhold.

Image Added

Работа с кодом примера

Для разбора кода возьмем версию примера PhoneMin, которая доступена доступна для скачивания в сборке 2.5.2.

...

1. Импорт API. код

Code Block

language	cppbash
theme	RDark

#import <FPWCSApi2/FPWCSApi2.h>

...

URL WCS-сервера
параметры SIP-аккаунта для совершения исходящих и приема входящих звонков
имя серверного приложения defaultApp

Code Block

language	cppbash
theme	RDark

FPWCSApi2SessionOptions *options = [[FPWCSApi2SessionOptions alloc] init];
options.urlServer = _connectUrl.text;
options.sipRegisterRequired = _sipRegRequired.control.isOn;
options.sipLogin = _sipLogin.input.text;
options.sipAuthenticationName = _sipAuthName.input.text;
options.sipPassword = _sipPassword.input.text;
options.sipDomain = _sipDomain.input.text;
options.sipOutboundProxy = _sipOutboundProxy.input.text;
options.sipPort = [NSNumber numberWithInteger: [_sipPort.input.text integerValue]];
options.appKey = @"defaultApp";
NSError *error;
if (!options.sipLogin.length || !options.sipAuthenticationName.length || !options.sipPassword.length ||
!options.sipDomain.length || !options.sipOutboundProxy.length || options.sipPort.integerValue == 0) {
UIAlertController * alert = [UIAlertController
alertControllerWithTitle:@"All Sip Credentials is required"
message:error.localizedDescription
preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction* okButton = [UIAlertAction
actionWithTitle:@"Ok"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
[self onDisconnected];
}];

[alert addAction:okButton];
[self presentViewController:alert animated:YES completion:nil];
return nil;
}
session = [FPWCSApi2 createSession:options error:&error];
if (error) {
UIAlertController * alert = [UIAlertController
alertControllerWithTitle:@"Failed to connect"
message:error.localizedDescription
preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction* okButton = [UIAlertAction
actionWithTitle:@"Ok"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
[self onDisconnected];
}];

[alert addAction:okButton];
[self presentViewController:alert animated:YES completion:nil];
return nil;
}
...
[session connect];

3. Исходящий звонок.

...

имя вызываемого SIP-аккаунта
дополнительные параметры SIP INVITE запроса, введенные пользователем

Code Block

language	bashcpp
theme	RDark

- (FPWCSApi2Call *)call {
    FPWCSApi2Session *session = [FPWCSApi2 getSessions][0];
    FPWCSApi2CallOptions *options = [[FPWCSApi2CallOptions alloc] init];
    NSString *parameters = _inviteParameters.input.text;
    if (parameters && [parameters length] > 0) {
        NSError* err = nil;
        parameters = [parameters stringByReplacingOccurrencesOfString:@""" withString:@"\""];
        NSMutableDictionary *dictionary = [NSJSONSerialization JSONObjectWithData:[parameters dataUsingEncoding:NSUTF8StringEncoding] options:0 error:&err];
        if (err) {
            NSLog(@"Error converting JSON Invite parameters to dictionary %@, JSON %@", err, parameters);
        } else {
            options.inviteParameters = dictionary;
        }
    }
    options.callee = _callee.input.text;
    //used for only recv audio
//    options.localConstraints = [[FPWCSApi2MediaConstraints alloc] initWithAudio:NO video:NO];
//    options.remoteConstraints = [[FPWCSApi2MediaConstraints alloc] initWithAudio:YES video:NO];
    NSError *error;
    call = [session createCall:options error:&error];
if (!call) {
UIAlertController * alert = [UIAlertController
alertControllerWithTitle:@"Failed to create call"
message:error.localizedDescription
preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction* okButton = [UIAlertAction
actionWithTitle:@"Ok"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
[self toCallState];
}];

[alert addAction:okButton];
[self presentViewController:alert animated:YES completion:nil];
return nil;
}

[call on:kFPWCSCallStatusBusy callback ...
    [call call];
    return call;
}

4. Получение от сервера события, сигнализирующего о входящем звонке

FPWCSApi2Session onIncomingCallCallback код

Code Block

language	cpp
theme	RDark

[session onIncomingCallCallback:^(FPWCSApi2Call *callrCall) {
[self changeCallStatus:call];
[self toCallState];
}];

[call on:kFPWCSCallStatusFailed callback:^(FPWCSApi2Call *call){
[self changeCallStatus:call];
[self toCallState];
}];

[call on:kFPWCSCallStatusRing callback:^(FPWCSApi2Call *call){
[self changeCallStatus:call];
[self toHangupState];
}];

    call = rCall;
        
    [call on:kFPWCSCallStatusHoldkFPWCSCallStatusBusy callback:^(FPWCSApi2Call *call){
[self changeCallStatus:call];
[self changeViewState:_holdButton enabled:YES];
}];

[call on:kFPWCSCallStatusEstablished callback:^(FPWCSApi2Call *call){
        [self changeCallStatus:call];
[self toHangupState];
[self changeViewState:_holdButton enabled:YES];
}];

[call on:kFPWCSCallStatusFinish callback:^(FPWCSApi2Call *call){
[self changeCallStatus:call];
        [self toCallState];
    }];

[call call];
return call;
}

4. Получение от сервера события, сигнализирующего о входящем звонке

FPWCSApi2Session onIncomingCallCallback код

Code Block

language	bash

[session onIncomingCallCallback:^(FPWCSApi2Call *rCall) {
call = rCall;

        
    [call on:kFPWCSCallStatusBusykFPWCSCallStatusFailed callback:^(FPWCSApi2Call *call){
        [self changeCallStatus:call];
        [self toCallState];
    }];

[call on:kFPWCSCallStatusFailed callback:^(FPWCSApi2Call *call){
[self changeCallStatus:call];
[self toCallState];
}];

        
    [call on:kFPWCSCallStatusRing callback:^(FPWCSApi2Call *call){
        [self changeCallStatus:call];
        [self toHangupState];
    }];
        
    [call on:kFPWCSCallStatusHold callback:^(FPWCSApi2Call *call){
        [self changeCallStatus:call];
        [self changeViewState:_holdButton enabled:YES];
    }];
        
    [call on:kFPWCSCallStatusEstablished callback:^(FPWCSApi2Call *call){
        [self changeCallStatus:call];
        [self toHangupState];
        [self changeViewState:_holdButton enabled:YES];
    }];
        
    [call on:kFPWCSCallStatusFinish callback:^(FPWCSApi2Call *call){
        [self changeCallStatus:call];
        [self toCallState];
        [self dismissViewControllerAnimated:YES completion:nil];
    }];
    ...
}];

5. Ответ на входящий звонок.

FPWCSApi2Call answer код

Code Block

language	bashcpp
theme	RDark

alert = [UIAlertController
                             alertControllerWithTitle:[NSString stringWithFormat:@"Incoming call from '%@'", [rCall getCallee]]
                             message:error.localizedDescription
                             preferredStyle:UIAlertControllerStyleAlert];
        
UIAlertAction* answerButton = [UIAlertAction
                               actionWithTitle:@"Answer"
                               style:UIAlertActionStyleDefault
                               handler:^(UIAlertAction * action) {
                                   [call answer];
                               }];
        
[alert addAction:answerButton];
UIAlertAction* hangupButton = [UIAlertAction
                               actionWithTitle:@"Hangup"
                               style:UIAlertActionStyleDefault
                               handler:^(UIAlertAction * action) {
                                   [call hangup];
                               }];
        
[alert addAction:hangupButton];
[self presentViewController:alert animated:YES completion:nil];

...

FPWCSApi2Call hold, unhold код

Code Block

language	cppbash
theme	RDark

- (void)holdButton:(UIButton *)button {
    [self changeViewState:button enabled:NO];
    if ([button.titleLabel.text isEqualToString:@"UNHOLD"]) {
        if (call) {
            [call unhold];
            [_holdButton setTitle:@"HOLD" forState:UIControlStateNormal];
        }
    } else {
        if (call) {
            [call hold];
            [_holdButton setTitle:@"UNHOLD" forState:UIControlStateNormal];
        }
    }
}

7. Отправка тонального сигнала

FPWCSApi2Call sendDTMF код

Code Block

language	cpp
theme	bashRDark

- (void)dtmfButton:(UIButton *)button {
    if (call) {
        [call sendDTMF:_dtmf.input.text type:kFPWCSCallDTMFRFC2833];
    }
}

8. Завершение исходящего звонка.

FPWCSApi2Call hangup код

Code Block

language	bashcpp
theme	RDark

- (void)callButton:(UIButton *)button {
    [self changeViewState:button enabled:NO];
    if ([button.titleLabel.text isEqualToString:@"HANGUP"]) {
        if ([FPWCSApi2 getSessions].count) {
            [call hangup];
        } else {
            [self toCallState];
        }
}     else {
if ([FPWCSApi2 getSessions].count) {
[self call];
} else {
[self toCallState];
}
}
} ...
    }
}

9. Завершение входящего звонка.

FPWCSApi2Call hangup код

Code Block

language	cppbash
theme	RDark

UIAlertAction* hangupButton = [UIAlertAction
                               actionWithTitle:@"Hangup"
                               style:UIAlertActionStyleDefault
                               handler:^(UIAlertAction * action) {
                                   [call hangup];
                               }];
        
[alert addAction:hangupButton];

...

FPWCSApi2Session disconnect код

Code Block

language	cppbash
theme	RDark

- (void)connectButton:(UIButton *)button {
    [self changeViewState:button enabled:NO];
    if ([button.titleLabel.text isEqualToString:@"DISCONNECT"]) {
        if ([FPWCSApi2 getSessions].count) {
            FPWCSApi2Session *session = [FPWCSApi2 getSessions][0];
            NSLog(@"Disconnect session with server %@", [session getServerUrl]);
            [session disconnect];
        } else {
            NSLog(@"Nothing to disconnect");
[self onDisconnected];
}
} else {
//todo check url is not empty
[self changeViewState:_connectUrl enabled:NO];
[self changeViewState:_sipLogin.input enabled:NO];
[self changeViewState:_sipAuthName.input enabled:NO];
[self changeViewState:_sipPassword.input enabled:NO];
[self changeViewState:_sipDomain.input enabled:NO];
[self changeViewState:_sipOutboundProxy.input enabled:NO];
[self changeViewState:_sipRegRequired.control enabled:NO];
[self changeViewState:_sipPort.input enabled:NO];
[self connect];
            [self onDisconnected];
        }
        ...
    }
}

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Пример iOS-приложения для аудиозвонков

Работа с кодом примера