User`s guide

Dialogic
®
1000 and 2000 Media Gateway Series User’s Guide 95
Parameter Reference
Packet Time for Inbound VoIP
Description: Specifies a packet time to use when there is no packet time specified by the SDP of
Inbound VoIP calls. The actual packet time used may be different depending on negotiated packet
time, codec, or system limitations.
Allowed Values:
• 10
• 20
• 30
• 40
• 50
• 60
Note: For DMG1000 only, an orange background color indicates that the current selection (in
combination with other data) will limit the available ports to 4.
Default Value = 20
INI File Parameter Name = sipGlobalPacketTime
Digit Relay Mode
Description: Selects the Realtime Transfer Protocol (RTP) method by which dual tone multi-
frequency (DTMF) tones are transported between the Media Gateway and VoIP endpoints.
Note: The Inband-Tone method passes the digits as audio data in the RTP stream, and is only reliable
when the parameter Audio Compression is set to G.711 only. The AVT method uses RFC 2833
RTP packets to pass the digits.
Codec Type Valid Packet Times (ms)
G.711 10, 20, 30, 40*, 50*, 60*
G.723 30, 60
G.729 10, 20, 30, 40, 50, 60
G.722 20
* = available on DMG2000 only.