Telephony - Advanced Settings: Setting Dtmf Signalling For Voip - Gigaset DX800 A Manual

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Telephony – Advanced Settings:

Setting DTMF signalling for VoIP

DTMF signalling is required, for example, for querying and controlling certain

network mailboxes via digit codes or for remote operation of the local answering

machine.

To send DTMF signals via VoIP you must first define how key codes should be con-

verted into and sent as DTMF signals: as audible information via the speech channel

or as a "SIP Info" message.

Ask your VoIP provider which type of DTMF transmission it supports.

Open the Settings

DTMF over VoIP connections area

Make the required settings for sending DTMF signals.

You have the following options:

You can activate the Automatic option. All other options for the Send settings

are deactivated. For each call, the base attempts to set the suitable DTMF signal-

ling type for the current codec.

You can deactivate the Automatic option and explicitly define the type of DTMF

signalling:

Activate Audio or RFC 2833 if DTMF signals are to be transmitted acoustically

(in voice packets).

Activate SIP Info if DTMF signals are to be transmitted as code.

Select Set to save your settings.

Please note

The settings for DTMF signalling apply to all VoIP connections (VoIP

accounts).

DTMF signals cannot be transmitted in the audio path (Audio) on broadband

connections (the G.722 codec is used).

Telephony

Advanced Settings Web page.

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