iphone - Unable to fetch mobile numbers from Contact List. iOS6 -

i new iphone app development(using ios6) , have been facing problem fetching mobile numbers contact list uitableviewcontroller. can first name , last name correctly phone numbers being returned null. not understand reason behind this.what doing wrong? code follows:

nsmutablearray *people = (__bridge_transfer nsmutablearray *) abaddressbookcopyarrayofallpeople (addressbookref);          nsstring *firstname = (__bridge_transfer nsstring *)abrecordcopyvalue((__bridge abrecordref)([people objectatindex:indexpath.row]), kabpersonfirstnameproperty);      nsstring *lastname = (__bridge_transfer nsstring *)abrecordcopyvalue((__bridge abrecordref)([people objectatindex:indexpath.row]), kabpersonlastnameproperty);      abmultivalueref phonenumbers = abrecordcopyvalue((__bridge abrecordref)([people objectatindex:indexpath.row]),kabpersonphoneproperty);  if (([firstname isequaltostring:@""] || [firstname isequaltostring:@"(null)"] || firstname == nil) &&     ([lastname isequaltostring:@""] || [lastname isequaltostring:@"(null)"] || lastname == nil)) {     // nothing } else {     aname = [nsstring stringwithformat:@"%@ %@", firstname, lastname];      if ([firstname isequaltostring:@""] || [firstname isequaltostring:@"(null)"] || firstname == nil)     {         aname = [nsstring stringwithformat:@"%@", lastname];     }      if ([lastname isequaltostring:@""] || [lastname isequaltostring:@"(null)"] || lastname == nil)     {         aname = [nsstring stringwithformat:@"%@", firstname];     }      //[self.tableitems addobject:aname];     nslog(@"%@ added",aname); }           //fetch multiple phone nos. , use 0th id person = people[indexpath.row]; abmultivalueref multi = abrecordcopyvalue((__bridge abrecordref)(person), kabpersonphoneproperty); nsstring* phone = (__bridge nsstring*)abmultivaluecopyvalueatindex(multi, 0); nslog(@"%@",phone); [cell.detailtextlabel settext:phone];  [cell.textlabel settext:aname]; return cell; 

here full working code

-(void)getaddressbook {     contacts = [[nsmutablearray alloc]init];     if (abaddressbookcreatewithoptions) {         @try {              abaddressbookref addressbook = abaddressbookcreate();             // nsarray *people = (nsarray*)abaddressbookcopyarrayofallpeople(addressbook);             if (!addressbook) {                 nslog(@"opening address book");             }             cfarrayref allpeople = abaddressbookcopyarrayofallpeople(addressbook);             cfindex npeople = abaddressbookgetpersoncount(addressbook);              nslog(@"opening address book ==%ld",npeople);              (int i=0;i < npeople;i++) {                  nsmutabledictionary *dofperson=[nsmutabledictionary dictionary];                 abrecordref ref = cfarraygetvalueatindex(allpeople,i);                 nsstring *contact;                 abmultivalueref phones =(__bridge abmultivalueref)((__bridge nsstring*)abrecordcopyvalue(ref, kabpersonphoneproperty));                 cfstringref firstname, lastname;                 nsmutablearray *array = [[nsmutablearray alloc]init];                 nsstring *email;                 firstname = abrecordcopyvalue(ref, kabpersonfirstnameproperty);                 lastname  = abrecordcopyvalue(ref, kabpersonlastnameproperty);                 abmultivalueref multivalueref = abrecordcopyvalue(ref, kabpersonemailproperty);                 array = [(__bridge nsmutablearray *)abmultivaluecopyarrayofallvalues(multivalueref) mutablecopy];                 email = ([array count] > 0) ? array[0] : @"";                  if(firstname)                 {                     contact = [nsstring stringwithformat:@"%@", firstname];                     if(lastname)                         contact = [nsstring stringwithformat:@"%@ %@",firstname,lastname];                 }                 [dofperson setobject:contact forkey:@"name"];                 [dofperson setobject:[nsstring stringwithformat:@"%d", i] forkey:@"id"];                 [dofperson setobject:[nsstring stringwithformat:@"%@",@""] forkey:@"found"];                 [dofperson setobject:email forkey:@"email"];                  nsstring* mobilelabel;                 for(cfindex j = 0; j< abmultivaluegetcount(phones); j++)                 {                     mobilelabel = (__bridge nsstring*)abmultivaluecopylabelatindex(phones, j);                     if([mobilelabel isequaltostring:(nsstring *)kabpersonphonemobilelabel])                     {                         [dofperson setobject:(__bridge nsstring*)abmultivaluecopyvalueatindex(phones, j) forkey:@"phone"];                     }                     else if ([mobilelabel isequaltostring:(nsstring*)kabpersonphoneiphonelabel])                     {                         [dofperson setobject:(__bridge nsstring*)abmultivaluecopyvalueatindex(phones, j) forkey:@"phone"];                         break ;                     }                 }                 [contacts addobject:dofperson];             }         }         @catch (nsexception * e) {             nslog(@"exception: %@", e);           }         dispatch_async(dispatch_get_main_queue(), ^{            });  } 

the phone numbers taken abmultivalueref phones =(__bridge abmultivalueref)((__bridge nsstring*)abrecordcopyvalue(ref, kabpersonphoneproperty));