VoIP
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8.2 Change advanced SIP settings
To change advanced SIP settings, navigate to the SIP Advanced part.
Change the parameters as required by your ISP, or keep the default value if you are not sure. After
the parameters are properly configured, click Apply on the bottom of the page to enable the
settings to take effect.
Parameter description
It specifies the port used for SIP calls.
It specifies the port for voice streams using the Real-time Transport Protocol (RTP).
Dual-tone Multi-frequency (DTMF) Relay enables the ONT to send DTMF digits over IP.
You can choose the DTMF relay type here, which includes RFC2833, SIP INFO, Inband
and DTMF_delete.
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