Tester of telephone networks
Logical diagram of the xPhoNet tester of telephone networks is shown below. In principle, it is about a high-capacity simulator of IP telephones, ISDN telephones, analogue telephones, GSM gates and subscriber bundles ISDN30. Number of terminals simulating telephone traffic is almost unlimited (up to thousands).
Tester of telephone networks executes the following checks of functionality:
| n | IP communication - the ability of an IP server to react to an ICMP message (so-called „ping“). The test assignment contains, among others: server IP address, length of tested packets, batch of tested packets and time limit to server reaction. As a result, the test shows information about network availability of the tested server and total time needed for transmission of messages „Echo Request“ and „Echo Reply“. |
| n | SIP registration - the ability of SIP server to accept registration of VoIP terminal. The test assignment contains, among others: IP address and UDP port of SIP server and UDP port, login and password of the terminal and time limit for successful termination of SIP registration. As a result, the test shows information about operability of tested SIP server and total time needed for registration. |
| n | Internal call - the ability to call within the network from one telephone number to another. The test assignment contains, among others: telephone number of the calling and the called subscriber (both within tested network) and time limit for start of ringing. As a result, the test shows information about telephone reachability within the given network and total time between termination of dialling by the caller and beginning of ringing. |
| n | Outgoing call - the ability to make a call from a telephone number within the given network to other network. The test assignment contains, among others: telephone number of the calling and the called subscriber (the former within the tested network and the latter belonging to the target network) and time limit until the ringing begins. As a result, the test shows information about telephone reachability at target network and total time between termination of dialling by the caller and beginning of ringing. |
| n | Incoming call - the ability to make a call from another telephone network to a telephone number of the given network. The test assignment contains, among others: telephone number of the calling and the called subscriber (the former coming from a source network and the latter within the tested network) and time limit until the ringing begins. As a result, the test shows information about telephone reachability from a source network and total time between termination of dialling by the caller and beginning of ringing. |
| n | Telephone conversation - the ability to make a high quality telephone conversation. The test assignment contains, among others: telephone number of the calling and the called subscriber (no matter if within the same or different networks) and time limit needed to make a call connection. As a result, the test shows information about call connectivity and about quality of connection expressed in MOS scale. |
All parameters of a specification together with results of particular tests are saved in the register of telephone networks.
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