VoIP Testing

Covering Functionality, Voice Quality, SIP Conformance, and Interoperability!

Featuring Professional Testing Knowledge and Extensive Testing Items for VoIP Equipments!

The flourishing development of VoIP technology results in high attention on the interoperability and the conformance issues. The conformance problems affect the interoperability directly. Thus, NBL testing services include a lot of valuable conformance, as well as interoperability, testing items for helping product development and examining product quality. In addition, voice quality is the basic and important index of the VoIP products. There are a set of voice quality testing items at NBL corresponding to your product requirements. We provide insightful suggestions for the product improvement after finishing the test.

Performance Voice Quality (PESQ, PSQM+, PAMS, MOS), Echo Doubletalk, Signal Loss, VAD, Call Processing (Bulk Call Generation), Security, Vulnerability Scanning, etc. Functionality Management, Firmware Update, Voice Message, DTMF, Authentication, Three-Way Conference, Call Features (Call Hold, Call Transfer, etc.), NAT Traversal, Networking (DHCP, DNS, PPPoE, etc.), Phone Book, etc. Interoperability Signaling, Conversation, CODEC, Call Features (Call Hold, Call Transfer, etc.), NAT Traversal, ENUM trial, etc. (Communicate with Different CPE and CO Devices) Conformance SIP Signaling (Testing in Normal and Abnormal Call Flows)

Testing topology for IAD gateway test Example Results: Performance Tests for the IAD Gateway Hours DUT Abacus Attempts DUT Answers Errors Completion Ratio Call Rate 12 IAD Gateway 1,370 1,370 0 100.00 114 24 IAD Gateway 2,578 2,576 2 99.92 107 36 IAD Gateway 3,669 3,659 10 99.73 101 48 IAD Gateway 4,577 4,565 12 99.74 95