Enhanced voice services Codec added to network emulator software

Posted By : Mick Elliott
Enhanced voice services Codec added to network emulator software

The new 3GPP Enhanced Voice Services (EVS) codec is now supported with Keysight Technologies’ E6966B IMS-SIP network emulator software. In addition, Keysight also has enhanced its UXM wireless test set with more IMS/VoLTE controls in its LTE/LTE-A test application software.

This includes front panel user interface configuration of 1) traffic flow template (TFT); 2) dedicated bearer setup; and 3) end-to-end VoLTE testing with two UEs connected to a single UXM. 

“The enhancements to the Keysight VoLTE test solution further simplify user-experience while expanding capabilities to ensure designs meet optimal key performance criteria well before they go to market,” said Satish Dhanasekaran, general manager of Keysight’s Wireless Devices and Operator Segment. 

Keysight has updated the E6966B software, which emulates the P-CSCF and IMS core network, with many new features, including the new EVS option E6966B-5TP. 

The Keysight EVS E6966B-5TP option includes:

  • All bit rates from narrowband 9.6kbit/s to super-wideband 128kbit/s, as well as fixed rate
  • Rate change modes such as priority, peer requested and stress, which enables the user to change the bit rate automatically every 20ms
  • Primary mode and AMR-WB IO compatibility model 

The E6966B IMS-SIP network emulator software includes the client and server, enabling the user to test either in a PC-only soft client configuration, or integrated with the Keysight E7515A UXM wireless test set to emulate the entire IMS/VoLTE environment for end-to-end IMS/VoLTE test.  

Complementing the UXM wireless test set and E6966BIMS-SIPnetwork emulator software, the Keysight U8903B peformance audio analyser provides pre-configured perceptual evaluation of speech quality (PESQ) and perceptual objective listening quality assessment (PoLQA) audio measurement analysis to complete the voice quality test solution.

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