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| Configuring the Audio Settings |
132
which can be used to identify the same key. If the End bit of a RTP packet is 1, the packet is the last DTMF tone. The
default telephoneEvent is 101, but you can change it.
INBAND
In-band transmission method. DTMF tones are transmitted together with the voice band. By analyzing the high
frequency and the low frequency of the RTP packets, the device can identify the corresponding key.
SIP INFO
Out-band transmission method. DTMF tones are transmitted by SIP signaling path. The SIP INFO message can
transmit DTMF tones in three ways: DTMF, DTMF-Relay and Telephone-Event.
Configuring DTMF for SIP Protocol
Procedure
1.
Do one of the following:
• On your web user interface, go to
Account
>
VC Platform
>
Video Conference Platform
>
Platform
Type
>
Zoom/Pexip/BlueJeans/EasyMeet/Custom
.
• On your web user interface, go to
Account
>
SIP Account/SIP IP Call
.
• On your VCS, go to
More
>
Setting
>
Advanced
>
SIP IP Call
.
On your VP59, tap
Setting
>
Advanced
>
SIP IP Call
.
• On your CTP20, tap
Setting
>
Advanced
>
SIP IP Call
.
2.
Configure and save the following settings:
Parameter
Description
Configuration Method
DTMF Type
Configure the DTMF type.
•
INBAND
—DTMF digits are
transmitted in the voice band,
together with the general
RTP voice packet.
•
RFC2833
—DTMF digits
are transmitted by RTP
packet which is compliant to
RFC2833.
•
SIP INFO
—DTMF digits
are transmitted by SIP INFO.
•
SIP INFO
—
DTMF digits are transmitted
by RFC 2833 and the SIP
INFO.
Default
: RFC2833.
Web user interface
Endpoint
CTP20
DTMF Info Type
Configure the DTMF info type
when DTMF type is set to SIP
INFO or SIP INFO.
• DTMF-Relay
• DTMF
• Telephone-Event
Default
: DTMF-Relay.
Web user interface
Endpoint
CTP20