User manual

VOPTech GoIP User Manual

1) Inband DTMF

The inband DTMF transmits dialing tones and call voices together, without any processing.

Therefore, the inband DTMF transmits DTMF signals through a single way.

2) Outband DTMF

The outband DTMF transmits dialing tones over protocols, such as RFC2833 and SIP INFO,

which can ensure the validity of the transmission.

G. Registration Mode

When the registration information is sent to the platform under Mode 1, “experise” info is

included. When the registration information is sent to the platform under Mode 2, “experise”

variable is not sent.

3.5.4 Media Advance Setting

The media advance setting is set for the RTP media stream of the gateway. Select “Call

Setting” > “Media” and the following setting parameters are displayed:

A. RTP Port (Range)

This parameter is used to specify the UDP of the RTP and used with the router port for

mapping. Note: The terminal will use multiple pairs of RTPs (depending on the number of

lines that the terminal supports). The value of this parameter ranges from 5500 to 5520.

B. Packet Length(ms)