A Systematic Approach to Telephony Services Quality of Experience
Voice QoE Robots are used both for Testing and Monitoring.Those reference users are connected and behaving like real users. They evaluate the service actually delivered according to what they hear, post-customer device.
They monitor services accessible through all networks:
- ToIP via IP-Phone
- Residential VoIP
- Mobile Telephony
- IVR and Call Centers
They interact with your services just like real users: make / receive calls, consult voicemail, navigate through IVRs, connect to a representative, etc.
They evaluate availability, response times, and audio / video quality actually heard through the telephone.
A Uniform Quality Baseline for Your Services
- Usable at every stage of the application development lifecycle
- Easy to understand and use for your technical team, support and operations managers
Help with Comprehensive Tracking and Analysis
While executing each scenario, the robot measures QoE KPIs and KQIS about the overall path and for each stage of the operation.
- Integrated system (HW+SW), carrier grade and calibrated.
- Perceptual analysis of speech quality in real time (PESQ model, ITU-T P.862-1)
- Dependable replication of user-critical scenarios
- Simultaneous execution of multiple scenarios
- Deployment within both live and development environments
- Seamless integrationin your business environment: security and systems management
- Centralized administration and reporting on Witbe Experience Center
- Possible control through third-part systems using web services.
Mission: Monitoring of landline analog telephony services (PSTN & VoIP using home gateways): availability, PPD , listening speech quality at both ends of the connection.
OS: Linux
Supported Services: telephony (all Codecs), voice mail access
Usage: testing and monitoring of telephony services via landline or gateway device
Method:
- Robots give/receive phones calls and conduct a conversation (method ref. PESQ, ITU-T P.862-1)
- Interactions with the service via DTMF and voice to reproduce all types of behaviors: pick up / hang up, conversation, …
- Analysis of audio rendering through the telephone interface : availability, PDD, audio quality and artifacts (disconnections, echo, signal, …)
Variations: IVR/Voice Robot combining abilities to interact with an IVR and to evaluate voice quality.
Test Interfaces: 4xRJ11
Specific Capabilities:
-
Calls with quality tests in conversational mode
- Analysis of audio quality in real time as per PESQ (Perceptual Evaluation of Speech Quality – ITU-T P.862-1): MOS-LQON
- Analysis of stability of quality during the conversation : ST-MOS (ETSI EG.202 765-2)
- Measurement of echo (ITU-G.131)
- Detailed analysis of voice artifacts and signals with a precision up to 1/100th of a second.
- Audio recordings in case of errors.
Packages Includes: Robot, network and telecom connections.
Mission: Monitoring of ToIP services via IP-Phones: availability, PPD (Post-Dial Delay), speech audio quality at both ends of the connection.
OS: Linux
Supported services: ToIP (all codecs and IP-Phone), voice mail access.
Usage: Testing and monitoring of ToIP services
Method:
- Robots give/receive phones calls and conduct a conversation (method ref. PESQ, ITU-T P.862-1)
- Interactions with the IP-Phone via IP, DTMF and voice to reproduce all types of behaviors: pick up / hang up, conversation, …
- Analysis of service rendering post-IP-Phone : availability, PDD, audio quality and artifacts (disconnections, echo, signal, …)
Formats: rackable 1U
Package Includes: Robot, network and telecom connections.
Specific Capabilities:
- Calls with quality tests in conversational mode
- Analysis of audio quality in real time as per PESQ (Perceptual Evaluation of Speech Quality – ITU-T P.862-1): MOS-LQON
- Analysis of stability of quality during the conversation : ST-MOS (ETSI EG.202 765-2)
- Measurement of echo (ITU-G.131)
- Detailed analysis of voice artifacts and signals with a precision up to 1/100th of a second
- Audio recordings in case of errors.
Mission: Monitoring of interactive Voice Response and Call Center access services: availability, PDD (Post-Dial Delay), navigation within the IVR, actual wait times to get a representative
OS: Linux
Supported Services: All IVR and call center services, over all netrworks and platforms
Usage: verification and external supervision of IVR and call centers
Method:
- Interactions between an IVR with DTMF or voice commands to reproduce all types of behavior: self-service, playing pre-recorded information, access to a representative
- Analysis of time intervals, conformity and audio quality of responses and IVR guides
- Measurement of actual wait times after requests to speak with a representative.
Test Interfaces: 4xRJ11
Formats: rackable 1U
Specific Capabilities:
- Multi-lingual voice recognition for interactions and verification of response conformity (correct and pertinent to the situation).
- Audio recordings in case of errors.
