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DMP 128 Plus C V / C V AT – RingCentral
3.6 Dialing
Use the Dialing tab to select the desired DTMF signaling method. The default DMP 128 mode is
In-Band. Other available options are as follows:
• Out of Band – SIP INFO
• Out of Band – SIP INFO (RELAY)
• Out of Band – RFC 2833
Click Apply after selecting the desired DTMF signaling method for the line. This can be set per
line.
Revision Date: 06/26/18
Page 11 of 14
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