Prices

Calls in IP-telephony system is considered the least cost call routing (LCR, Least Cost Routing system), which is based on the fact that checks the destination of each telephone call as soon as it is made inside the network what give to user the lowest price. Subject to compatibility with GSM-numbers, which is now widespread, providers of systems with minimal cost call routing LCR, can no longer rely on the use of the prefix number in order to determine how to forward (route) call. Instead, they need to know the actual name of the mobile network operator for each call to carry out its routing.

Therefore, VoIP-solutions are also needed to manage the compatibility of mobile numbers of MNP when routing a voice call. In countries without a central database, like the UK, it is sometimes necessary to send a request to the GSM-network on which network (which operator) belongs cell phone. Because VoIP is beginning to gain revolutions in the market companies through the use of system features a minimal cost call routing, you must provide a certain level of reliability in the management of calls.

Check the compatibility of mobile numbers of MNP are necessary to ensure that quality services will correspond to required, during the checking of the compatibility of mobile number before routing the call be realized, and thereby ensure that the voice call actually gets to destination, VoIP-companies give their business customers (consumers) a guarantee that they will find a provider of IP-telephony. The operator providing the service online pager, Tyntec, registered in the UK, providing service to Voice Network Query, (voice messaging system), this service enables operators as traditional voice and VoIP-operators to send a request to the GSM-network , the request is directed to trying to find a home network to transfer the number.

In the table presented prices some VoIP operators for calls to Portugal: