Exemplary scenarios

WHOSALE TERMINATION

VoipSwitch allows managing inbound and outbound traffic in the wholesale operations. In this scenario, VoipSwitch is a central point in the VoipSwitch’s network architecture that accepts connections coming from the Voip’s gateways and gatekeepers, authorizes them and sends further to gateways or gatekeepers that terminate calls. VoipSwitch keeps the account of connection charges and controls clients’ accounts of prepaid or credit type.
Information on all the connections is saved in a SQL database. The chart below shows the exemplary VoipSwitch’s implementation.


Picture 1 Exemplary scenarios

Calls coming from the gateway A are authorized, based on IP address, and sent further, according to the dialing plan, to gatekeeper C or gateway D. The connection is carried out in “proxy all” mode. Both media and the signalling messages are transferred through switch. VoipSwitch calculates the cost of each call based on the tariff assigned to a client.The gateway B connects with the gateway D in “signaling proxy” mode; only the control information goes through switch while media  are sent directly to the target gateway.Clients can make calls either from h323 or SIP devices.VoipSwitch, acting as an h323 gateway, can register to multiple external gatekeepers simultaneously.In the example above, gateway A and gateway B are defined in “GWclients” menu.Login and password are not used during the authorization process, however they allow clients to access website with the information on the connections made and the current account status. Gateways’ IP addresses are used for the authorization purposes. There are two accounts types: prepaid and credit. Connection is automatically terminated by switch if the set limit is exceeded.Gateway D and gatekeeper C, to which the connections are sent from the VoipSwitch, are defined in “gateways” and “gatekeepers” menus respectively.Proxy modes are set in “dialing plan” menu.