Call number and Phone number

Call number noun - A mark consisting of characters written on a book; used to indicate shelf location.

Phone number and call number are semantically related. In some cases you can replace phrase "Phone number" with "Call number", this phrases are similar.

Phone number noun - The number is used in calling a particular telephone.

Call number and phone number are semantically related. Sometimes you can replace phrase "Call number" with "Phone number", this phrases are similar.