In telecommunications the automatic call-back is a computer telephone function which allows the user by the engaged addressee’s line or in the other case of the subscriber’s inaccessibility indicating the system to save the number of the called subscriber and make the call when the line will be available or when the called number is not engaged.
J-Telecom is the leading international telecommunications company providing international calls worldwide via SIM Cards. SIP Accounts and Bulk SMS Services
Read more