Specifications

101
Setting DTMF signalling for VoIP
CE 450 IP R / IM-Ost english / A31008-M1817-R601_1-7619 / web_server.fm / 02.03.2007
Version 2, 21.12.2006
Setting DTMF signalling for VoIP
DTMF signalling, for example, is required to check and control some network mailboxes via
digit codes.
¤ Open the following Web page: Settings ¢ Telephony ¢ Advanced Settings.
Make the desired settings for the DTMF signals in the DTMF over VoIP Connections area.
Specify how key codes are to be converted and sent as DTMF signals: as audible informa-
tion in the voice channel or as a "SIP Info" message.
Ask your VoIP providers which type of DTMF transmission they support.
¤ 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.
¤ Now click Set to save your settings.
Please note:
The settings for DTMF signalling apply to all VoIP connections (VoIP accounts).