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Introduction

The Maxwell Basic / 2 / 3 support the following DTMF options.

    • Automatic negotiation of DTMF transmission YES/NO
    • Audio
    • RFC4733
    • Audio + RFC4733
    • SIP INFO
    • RFC 4733 + SIP Info
    • Audio + RFC4733 + SIP Info

Web-interface

In the web-interface go to: SETTINGS - Telephony - Connections - DTMF transmission

Auto-provisioning

Provisioning parameterValue

SIP.Account.0-3.DTMFTransmission

0-3 = SIP account 1-4

0 = Audio
1 = RFC 4733
2 = Audio + RFC 4733
3 = SIP info
4 = RFC 4733 + SIP info
5 = Audio + RFC 4733 + SIP info 

Example:

<param name="SIP.Account.0.DTMFTransmission" value="1"/>



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