json - Elastic search term filter is not working -

this elastic search query fetching id

curl -xget localhost:9200/test-index2/business/_search -d'  {      "query" : {          "filtered" : {               "query" : {                  "match_all" : {}               },              "filter" : {                  "term" : {                       "_id" : "au6lqk0wcsy7hkqgengx"                  }              }          }      }  }' 

and part of response

{"contactnumber": "+1-415-392-3702", "name": "golden gate hotel"} 

i've got contactnumber , name

now second query -> i'm querying above contact number using term filter

curl -xget localhost:9200/test-index2/business/_search -d'  {      "query" : {          "filtered" : {               "query" : {                  "match_all" : {}               },              "filter" : {                  "term" : {                       "contactnumber" : "+1-415-392-3702"                  }              }          }      }  }' 

and i've got 0 hits!

i've indexed both contactnumber , name field.

what doing wrong??

i should getting exact same record back

edit:
attaching mapping contact number

{"test-index2":{"mappings":{"business":{"properties":{"address":{"type":"string"},"contactnumber":{"type":"string","store":true},"name":{"type":"string"}}}}}} 

term filter doesn't analyze input text, meaning if search "+1-415-392-3702" exact text it's expecting find in index.

but, field being default string means uses standard analyzer analyzing it. means in index you'll have these tokens: "1","3702","392","415" , not single +1-415-392-3702.

so, need either 1 of these two:

    "contactnumber": {       "type": "string",       "index": "not_analyzed",       "store":true     } 

or

    "contactnumber": {       "type": "string",       "analyzer": "keyword",       "store":true     }