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About Us
Who We Are
Press Releases
Solutions
Session Border Controllers
SBC and SBC Clusters for CSPs
E-SBC for Enterprise
Enterprise Communications Broker
VoIP/SIP Monitoring & Analysis
SIP Monitoring VoIP for Telco CSPs
VoIP Monitor for Enterprise
Encrypted SIP Monitoring
SIP Service Loss/Registration Flaps
Service Assurance and Troubleshooting for Microsoft Teams
VoIP Fraud & Robo-Call Prevention
Restoring Trust in Patient and Customer Communication
RoboCalls—The Gateway to Ransomware Attacks
Robocall & Fraud Prevention
STIR/SHAKEN Analysis & Troubleshooting
Voice & Audio Quality Testing
Signal Analysis Concepts
Excellent MCPTT Voice Quality Testing
Reference Audio Files
MultiDSLA
Packet Brokers & TAPs with Dedup & Decrypt
Packet Brokers & TAPs
High Value Service for the New Rural Broadband Networks
Fast TV/Connected TV
Cloud-Based Analytics and Testing
Powerful Load and Stress Testing as a Service
Powerful Telecom Data Analytics as a Service
KPI Reporting as a Service
Quality Proactive VoIP Monitoring as a Service
Consulting
Professional Services
Session Border Controllers
Implementation Services
Session Border Controllers
Training Services
Enterprise Voice/UC
Managed Services
Monitoring, Reporting and KPIs
Proactive SIP and Media Quality Testing
SIP/VoIP Monitoring and Fraud Protection
Session Border Controllers
Integration Services
Session Border Controllers
Support Services
VoIP Monitoring
Partners
Resources
Blog
Events
Free Call and STIR/SHAKEN Reports
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DSL
Home
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Glossary Item
/ DSL
Digital Subscriber Line
DSL is a communications medium used to transfer digital signals over standard telephone lines
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