Browse articles on provisioning IP phones and troubleshooting PBX-related problems. Learn new ways to configure your phone system and maximize its functionality. Access Knowledgebase
Read the official user guide and learn how to setup all of its built-in features. Read this guide for tutorials on call flow management (mobile app included) and softphone creation. Access User Guide
Echo is the product of crosstalk – when sending and receiving signals mix. Some level of crosstalk is normal, but too much of it poses considerable interference. Echo becomes a problem when amplified by delay (click here). Note that two types of echo exist:
Hardware is usually the culprit of echo. For instance, a sensitive mouthpiece might pick up sounds from the earpiece. Likewise, feedback caused by cables or signals could produce echo. Devices with echo cancellation work actively against talker echo.
Cheap headsets without cancellation should not operate at full volume or gain. If this is an issue, then an echo suppressor might prove useful. Suppressors act as gatekeepers during a conversation, switching the microphone on and off. Unfortunately, suppressors may cause choppiness if not optimized.
Low-end Analogue Telephone Adaptors sometimes cause echo during the audio conversion process, too. In such cases, echo is much harder to troubleshoot.