September 2008
Intermediate to advanced
550 pages
18h 10m
English
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13.2 FIRST-LEVEL VoIP MANUAL TESTS
At the first level of VoIP voice testing, it is essential to ensure all the required network and telephone interfaces, basic functions of VoIP signaling, voice, and call features are working with multiple phones and third-party VoIP gateway boxes. In manual tests between two VoIP gateways, several telephones with call features support as well as fax machines are used as the analog interface for the FXS port of the VoIP gateway. A VoIP soft switch is used for call establishing between gateways. A third-party good-quality reference box with a minimum of two telephone interfaces can be used for interoperability testing. It is suggested to conduct the following manual tests with phones and fax machines before conducting tests with several instruments:
- Basic VoIP voice calls within the same gateway, also called hairpin voice calls, assuming the gateway has multiple telephone interfaces. If the gateway has only one voice interface, voice calls have to be conducted between two gateways.
- Basic voice calls between similar gateways (gateways of the same manufacturer) and voice calls between gateway and another third-party gateway. The third-party gateway has to be of a good-quality VoIP box used as a known reference.
- Manual calls for the call features of the product, such as caller ID, call waiting, call wait ID, call forward, call transfer, three-way conference call, and message waiting, have to be conducted. Some call features testing will need soft ...
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