Terimler Sözlüğü

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Welcome to the ZyXEL Networking Glossary - your definitive source for descriptions of networking terms and ZyXEL's product features.

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    DTMF Relay

    DTMF (Dual-Tone Multi-Frequency) relay detects DTMF signals and sends them out-of-band (via SIP or RTP) to the remote party. DTMF relay is used when a low-bitrate voice codec might distort DTMF signals sent over the voice channel.