DTMF (Dual Tone Multi-frequency) tone, better known as touch tone. DTMF is the signal sent from the IP phone to the network, which is generated when pressing the IP phone’s keypad during a call. Each key pressed on the IP phone generates one sinusoidal tone of two frequencies. One is generated from a high-frequency group and the other from a low-frequency group.
The following table lists the parameters you can use to configure the transmitting DTMF digit.
Parameter | DBID_SIP_DTMF_MODE |
---|---|
Description | It configures the DTMF type. |
Permitted Values | 0-INBAND, DTMF digits are transmitted in the voice band. 1-RFC2833, DTMF digits are transmitted by RTP Events compliant to RFC 2833. 2-SIP-INFO, DTMF digits are transmitted by the SIP INFO messages. 3-RFC2833 + SIP-INFO, DTMF digits are transmitted by RTP Events compliant to RFC 2833 and the SIP INFO messages. |
Default | 1 |
Web UI | SIP Account > Line X [1] > Advanced > SIP Advanced Setup > DTMF Type |
Parameter | DBID_RFC_PAYLOAD |
---|---|
Description | It configures the value of DTMF payload. Note: It works only if “DBID_SIP_DTMF_MODE” is set to 1 (RFC2833) or 3 (RFC2833 + SIP INFO). |
Permitted Values | Integer larger than 96 |
Default | 101 |
Web UI | SIP Account > Line X [1] > Advanced > SIP Advanced Setup > RFC2833 Payload (>=96) |
[1] X is the account ID. X = 1-4
Author:admin Create time:2023-08-30 17:28
Last editor:admin Update time:2024-07-29 16:00
Last editor:admin Update time:2024-07-29 16:00