使用云之讯语音验证码功能，需要到云之讯开放平台去注册对应的账号，才能使用。

这里http://www.ucpaas.com/doc/doc_rest3-2.jsp 是官方文档 ，需要自己研究第一行文字，才能

明白业务功能的实现点。

下面是一个封装好的类，针对使用该SDK的帮助类：

//
//  HYBUCSSDKHelper.h
//  UCSVoiceOrSMSVerifyCodeDemo
//
//  Created by 黄仪标 on 15/2/2.
//#import <Foundation/Foundation.h>
#import "UCSEvent.h"
#import "UCSService.h"/*!* 云之讯UCS SDK铺助类，封装对IM、智能验证、VOIP网络电话功能* @author huangyibiao*/
@interface HYBUCSSDKHelper : NSObject<UCSEventDelegate>/*!* 此处封装为单例*/
+ (HYBUCSSDKHelper *)shared;/*!*--------------------------------------------------------------------------* 下面的方法，是与云之讯平台连接相关的API*--------------------------------------------------------------------------*/// 明文连接
- (NSInteger)connectWithClientNumber:(NSString *)clientNumberpassword:(NSString *)clientPassword;// 连接服务器（密文）
- (NSInteger)connect:(NSString *)token;// 连接服务器（明文,指定IP，Port）
- (NSInteger)connect:(NSString *)hostAddressport:(NSString *)hostPortclientNumber:(NSString *)clientNumberpassword:(NSString *)clientPassword;// 连接服务器（密文,指定IP，Port）
- (NSInteger)connect:(NSString *)hostAddresswithPort:(NSString *)hostPortwithToken:(NSString *)token;// 获取与云之讯平台连接的状态
- (BOOL)isConnected;/*!*--------------------------------------------------------------------------*         智能验证API*--------------------------------------------------------------------------*/
/*** 获取云验证码*/
- (void)ucsVerifyCodeWithPhone:(NSString *)phoneseconds:(int)seconds;/*** 验证码验证*/
- (void)checkUcsVerifyCodeWithPhone:(NSString *)phoneverifycode:(NSString *)verifycode;/*!*--------------------------------------------------------------------------*         语音验证码、短信验证码相关API*--------------------------------------------------------------------------*/
/*** 调起语音验证码接口*/
- (void)voiceCodeTo:(NSString *)phone verifyCode:(NSString *)verifyCode;/*** 调起短信验证码接口* @param phone 短信接收端手机号码集合，用英文逗号分开，每批发送的手机号数量不得超过100*              个（国内短信不要加前缀，国际短信号码前须带相应的国家区号，如日本：0081）* @param param 内容数据，用于替换模板中{数字}，若有多个替换内容，用英文逗号隔开即可*/
- (void)smsCodeTo:(NSString *)phone param:(NSString *)param;@end

下面是实现文件，这里的网络库使用的是AFN：

#define kAccountSid @"" // 替换为您的sid
#define kAccountToken @""
#define kAppId @""
#define kAppName @""#define kUCSBaseURL @"https://api.ucpaas.com"
#define kSoftVersion @"2014-06-30" // 云之讯REST API版本号。@interface HYBUCSSDKHelper ()@property (nonatomic, strong) UCSService *ucsService;
@property (nonatomic, copy)   NSString   *callerPhoneNumber; // 主叫号码
@property (nonatomic, copy)   NSString   *phoneNumber;       // 被叫号码@end@implementation HYBUCSSDKHelper+ (HYBUCSSDKHelper *)shared {static HYBUCSSDKHelper *s_helper = nil;static dispatch_once_t onceToken;dispatch_once(&onceToken, ^{if (s_helper == nil) {s_helper = [[[self class] alloc] init];}});return s_helper;
}- (instancetype)init {if (self = [super init]) {self.ucsService = [[UCSService alloc] initWithDelegate:self];}return self;
}/*!*--------------------------------------------------------------------------* 下面的方法，是与云之讯平台连接相关的API*--------------------------------------------------------------------------*/
// 明文连接
- (NSInteger)connectWithClientNumber:(NSString *)clientNumber password:(NSString *)clientPassword {return [self.ucsService connect:kAccountSidwithAccountToken:kAccountTokenwithClientNumber:clientNumberwithClientPwd:clientPassword];
}// 连接服务器（密文）
- (NSInteger)connect:(NSString *)token {return [self.ucsService connect:token];
}// 连接服务器（明文,指定IP，Port）
- (NSInteger)connect:(NSString *)hostAddressport:(NSString *)hostPortclientNumber:(NSString *)clientNumberpassword:(NSString *)clientPassword {return [self.ucsService connect:hostAddresswithPort:hostPortwithwithAccountSid:kAccountSidwithAccountToken:kAccountTokenwithClientNumber:clientNumberwithClientPwd:clientPassword];
}// 连接服务器（密文,指定IP，Port）
- (NSInteger)connect:(NSString *)hostAddresswithPort:(NSString *)hostPortwithToken:(NSString *)token {return [self.ucsService connect:hostAddress withPort:hostPort withToken:token];
}// 查询帐号与服务器连接状态
- (BOOL)isConnected {return [self.ucsService isConnected];
}/*!*--------------------------------------------------------------------------*         智能验证*--------------------------------------------------------------------------*/
/*** 获取云验证码*/
- (void)ucsVerifyCodeWithPhone:(NSString *)phoneseconds:(int)seconds {[self.ucsService getVerificationCode:kAccountSidwithAppid:kAppIdwithAppName:kAppNamewithCodetype:1withPhone:phonewithSeconds:secondswithBusiness:1];
}/*** 验证码验证*/
- (void)checkUcsVerifyCodeWithPhone:(NSString *)phoneverifycode:(NSString *)verifycode {[self.ucsService doVerificationCode:kAccountSidwithAppid:kAppIdwithPhone:phonewithVerifycode:verifycode];
}/*!*--------------------------------------------------------------------------*         语音验证码、短信验证码相关API*--------------------------------------------------------------------------*/
/*** 调起语音验证码接口*/
- (void)voiceCodeTo:(NSString *)phone verifyCode:(NSString *)verifyCode {AFHTTPRequestOperationManager *manager = [self operationManagerWithBaseUrl:kUCSBaseURL];// 获取系统当前的时间戳NSString *timestamp = [self timestamp];[manager.requestSerializer setValue:[self authorization:timestamp] forHTTPHeaderField:@"Authorization"];NSString *url = [NSString stringWithFormat:@"/%@/Accounts/%@/Calls/voiceCode?sig=%@",kSoftVersion, kAccountSid, [self sig:timestamp]];NSDictionary *params = @{@"voiceCode" : @{@"appId"      : kAppId,@"to"         : phone,@"verifyCode" : verifyCode}};[manager POST:url parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {NSLog(@"url: %@\nparmas: %@\nresponseObject:%@\nerrorMessage: %@ errorCode=%@ headers:%@",operation.response.URL.absoluteString,params,responseObject,responseObject[@"errorMessage"],responseObject[@"errorCode"],operation.request.allHTTPHeaderFields);if ([responseObject isKindOfClass:[NSDictionary class]]) {NSLog(@"%@", responseObject);} else {}} failure:^(AFHTTPRequestOperation *operation, NSError *error) {NSLog(@"error: %@", [error description]);}];
}- (NSString *)timestamp {NSDateFormatter *formatter = [[NSDateFormatter alloc] init];[formatter setDateStyle:NSDateFormatterMediumStyle];[formatter setTimeStyle:NSDateFormatterShortStyle];[formatter setDateFormat:@"yyyyMMddHHmmss"];NSDate *datenow = [NSDate date];NSString *timestamp = [formatter stringFromDate:datenow];return timestamp;
}- (NSString *)authorization:(NSString *)timestamp {// 使用Base64编码（账户Id + 冒号 + 时间戳）NSString *authorization = [NSString stringWithFormat:@"%@:%@", kAccountSid, timestamp];authorization = [self base64Encoding:authorization];return authorization;
}- (NSString *)sig:(NSString *)timestamp {// URL后必须带有sig参数，sig= MD5（账户Id + 账户授权令牌 + 时间戳），共32位(注:转成大写)// 使用MD5加密（账户Id + 账户授权令牌 + 时间戳），共32位。NSString *sig = [NSString stringWithFormat:@"%@%@%@", kAccountSid, kAccountToken, timestamp];sig = [[self md5n:sig] uppercaseString];return sig;
}/*** 调起短信验证码接口* @param phone 短信接收端手机号码集合，用英文逗号分开，每批发送的手机号数量不得超过100*              个（国内短信不要加前缀，国际短信号码前须带相应的国家区号，如日本：0081）* @param param 内容数据，用于替换模板中{数字}，若有多个替换内容，用英文逗号隔开即可*/
- (void)smsCodeTo:(NSString *)phone param:(NSString *)param {AFHTTPRequestOperationManager *manager = [self operationManagerWithBaseUrl:kUCSBaseURL];// 获取系统当前的时间戳NSString *timestamp = [self timestamp];[manager.requestSerializer setValue:[self authorization:timestamp] forHTTPHeaderField:@"Authorization"];NSString *url = [NSString stringWithFormat:@"/%@/Accounts/%@/Messages/templateSMS?sig=%@",kSoftVersion, kAccountSid, [self sig:timestamp]];NSDictionary *params = @{@"templateSMS" : @{@"appId"      : kAppId,@"to"         : phone,@"templateId" : @(3177),@"param"      : param}};[manager POST:url parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {NSLog(@"url: %@\nparmas: %@\nresponseObject:%@\nerrorMessage: %@ errorCode=%@ headers:%@",operation.response.URL.absoluteString,params,responseObject,responseObject[@"errorMessage"],responseObject[@"errorCode"],operation.request.allHTTPHeaderFields);if ([responseObject isKindOfClass:[NSDictionary class]]) {NSLog(@"%@", responseObject);} else {}} failure:^(AFHTTPRequestOperation *operation, NSError *error) {NSLog(@"error: %@", [error description]);}];
}/*!* @brief 将字符串转换成二进制数据后，再进行base64编码* @return 返回base64编码后的字符串*/
- (NSString *)base64Encoding:(NSString *)str {NSData *data = [str dataUsingEncoding:NSUTF8StringEncoding];NSString *result = nil;// 判断是否是ios7及其以上版本
#define kIsIOS7OrLater ([UIDevice currentDevice].systemVersion.integerValue >= 7 ? YES : NO)if (kIsIOS7OrLater) {result = [data base64EncodedStringWithOptions:0];} else {result = [data base64Encoding];}return result;
}#pragma mark - md5加密
/*!* @brief 将字符串本身进行md5加密，并将加密后的字符串返回* @return 返回加密后的字符串*/
- (NSString *)md5n:(NSString *)str {const char *cStr = [str UTF8String];unsigned char result[16];CC_MD5(cStr, strlen(cStr), result);return [NSString stringWithFormat:@"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",result[0], result[1], result[2], result[3],result[4], result[5], result[6], result[7],result[8], result[9], result[10], result[11],result[12], result[13], result[14], result[15]];
}#pragma mark - UCCEventDelegate
// 与云通讯平台连接成功
- (void)onConnectionSuccessful:(NSInteger)result {NSLog(@"与云通讯平台连接成功 result=%ld", result);
}// 与云通讯平台连接失败或连接断开
- (void)onConnectionFailed:(NSInteger)reason {NSLog(@" 与云通讯平台连接失败或连接断开 reason=%ld", reason);
}/*!*--------------------------------------------------------------------------*         智能验证：语音验证码、短信验证码相关API代理回调*--------------------------------------------------------------------------*/
// 云获取验证码成功  0：已经验证成功，1:已下发验证码到用户
- (void) onGetValiateCodeSuccessful:(NSInteger)nResult {NSLog(@"%@", nResult ? @"已下发验证码到用户" : @"已经验证成功");
}// 云获取验证码失败
- (void) onGetValiateCodeFailed:(NSInteger)reason {NSLog(@"云获取验证码失败 reason=%ld", reason);
}// 云验证成功
- (void) onDoValiateCodeSuccessful:(NSInteger)nResult {NSLog(@"云验证成功 result=%ld", nResult);
}// 云验证失败
- (void) onDoValiateCodeFailed:(NSInteger)reason {NSLog(@"云验证失败 reason=%ld", reason);
}- (AFHTTPRequestOperationManager *)operationManagerWithBaseUrl:(NSString *)url {// 开启菊花转[AFNetworkActivityIndicatorManager sharedManager].enabled = YES;AFHTTPRequestOperationManager *manager = [[AFHTTPRequestOperationManager alloc]initWithBaseURL:[NSURL URLWithString:url]];manager.requestSerializer = [AFJSONRequestSerializer serializer];manager.responseSerializer = [AFJSONResponseSerializer serializer];manager.requestSerializer.stringEncoding = NSUTF8StringEncoding;[manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Accept"];[manager.requestSerializer setValue:@"application/json;charset=utf-8" forHTTPHeaderField:@"Content-Type"];[manager.requestSerializer setValue:@"256" forHTTPHeaderField:@"Content-Length"];manager.responseSerializer.acceptableContentTypes = [NSSet setWithArray:@[@"application/json",@"text/html",@"text/json",@"text/javascript"]];return manager;
}@end

上面部分源码是无用的，因为这是为后面追加功能而添加的，这里只说明语音、短信验证码功能的实现。

说明：这里提供的部分源码，不意味着是好的代码，具体还请参考官方文档说明。