Inter-core transport audio quality testing remote from testing site

A non-transitory computer readable storage medium impressed with computer program instructions to test audio quality of a transport segment between two core networks, the instructions, when executed on a processor, implement a method comprising:

• a first virtual test agent (VTA) selecting a Mobility Management Engine (MME) corresponding to an eNodeB positioned at a physical location served by a first core network
• for routing a second call, through a Serving Gateway (SGW) assigned by the MME for audio communication with a tester terminus, from the first VTA to a second VTA at a second core network over a transport-segment-under-test that connects the first and second core networks,
• whereby a tester can evaluate audio quality over the transport-segment-under-test;
• the first VTA making a first call to a tester appliance;
• the first VTA making the second call, over the transport-segment-under-test, to the second VTA implementing audio evaluation by signaling the MME;
• and
• bridging, by the first VTA, the first and second calls by relaying audio during a test of subjective audio quality, whereby the relay through the SGW assures that the relayed audio in the second call is relayed over the transport segment under test.

A system including one or more processors coupled to memory, the memory loaded with computer instructions to test audio quality of a transport segment between two core networks, the instructions, when executed on the processors, implement actions comprising:

• a first virtual test agent (VTA) selecting a Mobility Management Engine (MME) corresponding to an eNodeB positioned at a physical location served by a first core network
• for routing a second call, through a Serving Gateway (SGW) assigned by the MME for audio communication with a tester terminus, from the first VTA to a second VTA at a second core network over a transport-segment-under-test that connects the first and second core networks,
• whereby a tester can evaluate audio quality over the transport-segment-under-test;
• the first VTA making a first call to a tester appliance;
• the first VTA making the second call, over the transport-segment-under-test, to the second VTA implementing audio evaluation by signaling the MME;
• and
• bridging, by the first VTA, the first and second calls by relaying audio during a test of subjective audio quality, whereby the relay through the SGW assures that the relayed audio in the second call is relayed over the transport segment under test.