Connection is not carried out so user is not charged by the telecommunication operator. Depending on the set up, usually within a few seconds from the time the call is initiated, VoipSwitch calls back the user inquiring the phone number he/she wants to connect with. After dialing the desired number VoipSwitch connects user's number and dialed number. If the connection does not succeed, e.g. the line is busy or there is no answer, user is requested to dial the number again. Also, if the called party terminates the connection, user can call another number without the necessity to initiate the callback service again.
Authorization is conducted based on the caller ID (ANI) of the phone that was used to dial the access number. Several telephone numbers, which can be used to initiate callback service, can be assigned to the user's account. It is also possible to set one number as a default number i.e. the number that system will always call back to, regardless of the phone number the call was initiated from. For instance user initiates the call from the mobile phone and VoipSwitch, after concluding the authorization process, calls back on the regular phone set as default.
User has the option of assigning the number to the account through the website or by sending SMS message (provided the SMS service is active).
Following is the structure of the SMS that registers the phone number:
U.callback P.pass R.48600316058
Where: u - user name, p-password, r-user?s phone number
The process of assigning the phone number through the website is analogous with the SMS callback service. The same phone numbers can be utilized for both services. In addition, user can access the current information on the history of calls performed.
This service also allows checking the account status by dialing particular number e.g. 111 (this number is defined in VPConfig)
Accounts for ANI callback clients are added in ?callback clients? menu. Callback client can also use web callback, SMS callback and PC2Phone services, provided they are authorized to use one account for PC2Phone and callback services.
System is equipped with a tool for automatic generation of login/password pairs with the possibility of exporting data to the file and managing created lots.
User has the possibility of logging to the website with detailed information on billing. Also, there is detailed information on current account status, detailed connection history and the option of exporting data to the file.
