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echo cancellation
- This function prevents unwanted echo effects that can occur when signals are sent and received at the same time, for example, in telephony
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EHS port
- DHSG is known as EHS (meaning: "Electronic Hook Switch") in English; this is an electronic interface for wireless headsets, which have speakers, a microphone and – for the EHS function – a call acceptance and termination button
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endpoint security
- Real-time attack protection for endpoints (devices) that connect to a network and are therefore potentially vulnerable to malware threats
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exchange line routing
- In an ICT system, this regulates the distribution of incoming external calls (incoming exchange line routing) and the handling of outgoing external calls (outgoing exchange line routing)
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external line key
- Direct assignment of an exchange line
