判断 iPhone 是否插入了 SIM 卡，可以参考苹果官网的 systemconfigure framework 教程，将下面的代码复制到头文件

#import <Foundation/Foundation.h>@interface NSObjectiveCPlusPLus : NSObjectextern NSString* const kCTSMSMessageReceivedNotification;
extern NSString* const kCTSMSMessageReplaceReceivedNotification;
extern NSString* const kCTSIMSupportSIMStatusNotInserted;
extern NSString* const kCTSIMSupportSIMStatusReady;id CTTelephonyCenterGetDefault(void);
void CTTelephonyCenterAddObserver(id,id,CFNotificationCallback,NSString*,void*,int);
void CTTelephonyCenterRemoveObserver(id,id,NSString*,void*);
int CTSMSMessageGetUnreadCount(void);int CTSMSMessageGetRecordIdentifier(void * msg);
NSString * CTSIMSupportGetSIMStatus();
NSString * CTSIMSupportCopyMobileSubscriberIdentity();id  CTSMSMessageCreate(void* unknow/*always 0*/,NSString* number,NSString* text);
void * CTSMSMessageCreateReply(void* unknow/*always 0*/,void * forwardTo,NSString* text);void* CTSMSMessageSend(id server,id msg);NSString *CTSMSMessageCopyAddress(void *, void *);
NSString *CTSMSMessageCopyText(void *, void *);@end

然后引入 CoreTelephony.framework ，即可利用 [CTSIMSupportGetSIMStatus()  isEqualToString:kCTSIMSupportSIMStatusNotInserted] 进行判断。

用法：

//判断是否插入
if simStatus.isEqualToString(kCTSIMSupportSIMStatusNotInserted) {//未插入SIM卡}else {//拨打电话var urlString = "tel:" + businessDetailModel.serviceTel!UIApplication.sharedApplication().openURL(NSURL(string: urlString)!)}