VPP - VoxPort Packet

Overview

The VoxPort Packet (VPP) is a software-based SIP endpoint designed for active testing and measurement of VoIP and VoLTE services within IP networks. It is a component of the MultiDSLA system, which facilitates comprehensive voice quality assessments across various network environments.

VPP enables the generation and analysis of real voice calls over VoIP networks, supporting features such as:

• Voice Quality Metrics: Utilization of industry-standard algorithms like POLQA and PESQ to objectively measure speech quality.
• Packet Impairment Simulation: Optional capabilities to introduce controlled impairments, aiding in the evaluation of network resilience and performance under adverse conditions.
• Codec Management: Support for various codecs with the ability to manage and switch codec rates during testing scenarios.

By integrating VPP into testing workflows, operators and service providers can effectively assess and ensure the quality and reliability of their voice services over IP-based networks.

MultiDSLA Platform

Acts as the central control and analysis software environment.

Provides test configuration, execution, results collection, and advanced reporting.

Supports remote management and automation for distributed test environments.

VOX PORT PACKET (VPP) Agent

Serve as the interface to the Device Under Test (DUT). VPP provides interfacing and measurement capabilities to VoIP network and devices.

 MultiDSLA also supports some software agents OSS for mobile connectivity and hardware agents DSLA for analog and handset connectivity.

Better validate or predict your voice quality of experience

Overlays are a unique way to easily reproduce and understand voice quality impairment.

VPP has two overlay modes:

• The Packet Impairment Overlay defines a precise pattern of packet impairments.
• The Rate Change Overlay defines transmit rate changes or Codec Mode Requests (CMR) synchronised to speech transmissions.

Both of these overlays may be constructed by the user with a graphical overlay designer.

Alternatively, the Packet Impairment Overlay may be based on a capture from a live network.

Use Cases : Voice Quality Testing in the Lab - Voice Network Monitoring - MCPTT/MCx Testing - Drive Testing