Dialogic DMG1000 User Manual page 75

• Inband-Tone = The DTMF tones are coded into the regular audio packets (RTP voice packets)
sent between the Media Gateway and VoIP endpoints.
Default Value = RFC2833
INI File Parameter Name = dspDigitRelay
RTP Fax/Modem Tone Relay Mode
Description: Selects the Realtime Transfer Protocol (RTP) method by which fax and modem tones
are transported between the TDM network and VoIP network.
Allowed Values:
• RFC2833 = Fax and modem tones from the TDM network are sent as RFC2833 packets to the
VoIP network. RFC2833 packets from the VoIP network are rendered to TDM.
• Inband-Tone = Fax and modem tones from the TDM network are passed through VoIP.
Inband-Tone is only reliable when the Preferred Code parameter is set to G.711 only.
Default Value = RFC2833
INI File Parameter Name = dspFaxModemToneRelay
RTP Source IP Address Validation
Description: If set to On, then the source IP address of received RTP packets must match the IP
address to which RTP is being sent. If the source IP address does not match, then the packet is
discarded. If set to Off, then the source IP address of received RTP packets is not validated.
Allowed Values:
• On
Off
•
Default Value = Off
INI File Parameter Name = gwRTPValidateSrcIp
Note: Unit requires a restart if this parameter value is changed.
RTP Source UDP Port Validation
Description: If set to On, then the source UDP port of received RTP packets must match the UDP
port to which RTP is being sent. If the source UDP port does not match, then the packet is
discarded. If set to Off, then the source UDP port of received RTP packets is not validated.
Allowed Values:
• On
• Off
®
Dialogic 1000 and 2000 Media Gateway Series User's Guide — September 2007
Dialogic Corporation
Parameter Reference
75