Welltech VoIP ATA series V.2.1 - Manual (Page 93)

ATA-171/172/171P/171M/171+/172+
User’s Guide
7.5.1 DTMF Settings
7.5.1 Function
DTMF Setting provides three kinds of DTMF modes: RFC2833，In Band DTFM，Send
DTMF SIP Info.
7.5.2 Instruction
Figure DTMF Setting
RFC2833 Default: RFC 2833；Transfer DTMF mode information. Provides
RFC2833.
In band DTMF Transfer DTMF mode information. Provides In Band.
Send DTMF SIP
Info Transfer DTMF mode information. Provides SIP Info.
Submit [Button] Submit the change.
Reset [Button] Clear the change.
7.5.3 Operate Instruction
Example1: RFC2833
Step 1: On the main page, select [SIP Settings DTMF Settings], enter [DTMF Setting] page,
after revising the information (e.g.: RFC2833) (See Figure 1), click [Submit].
(Figure 1)
Step 2: After saving change, enter [Note Information] page, “Note Information” will be seen, then the
changing will come into effect.
Step 3: On the main page, select [Save Change] item, enter [Save Changes] page, and execute the
saving command by click [Save]. [Note Information] page will be seen which means saving
successfully. And the system will be restarted, please wait for a while.
Step: 4 After rebooting, call to another equipment, and press DTMF (e.g.:222); please
check [Ethereal] Packet and [RTP EV，Payload Type=RTP Event，DTMF xx] column
(See Figure 2)