ET 200X(L) Series Digital Gateway User Manual
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Port
The port number the gateway will connect to at this endpoint.
Encryption
Enable IAX2 encryption. The default is no.
Force Encryption
Force encryption insures no connection is established unless both sides support
encryption. By turning this option on, encryption is automatically; turned on as well. The
default is no.
Trunk Max Size
Defaults to 128000 bytes, which supports up to 800; calls of ulaw at 20ms a frame.
Trunk MTU
With a large amount of traffic on IAX2 trunk, there is a risk of bad voice quality when
allowing the Linux system to handle fragmentation of UDP packets.
Depending on the side of each payload, allowing the OS to handle fragmentation may
not be very efficient. This setting sets the maximum transmission unit for AIX2 UDP
trunking. The default is 1240 bytes which means if a trunk’s payload is over 1240 bytes
for every 20ms it will be broken into multiple 1240 bytes messages. Zero disables this
functionality and let’s the OS handle fragmentation.
Trunk Frequency
How frequently to send trunk msgs (in ms). This is 20ms by default.
Trunk Time Stamps Should we send timestamps for the individual sub_frames within trunk frames? There is
a small bandwith use for these (less than 1kbps/call), but they ensure that frame
timestamps get sent end-to-end properly. If both ends of all your trunks go directly to
TDM, _and_your trunkfreq equals the frame length for your codecs, you can probably
suppress these. The receiver must also need to have it enabled.
Min. RegExpire
Minimum amounts of time that IAX2 peers can request as a registration interval (in
seconds).
Max. RegExpire
Maximum amounts of time that IAX2 peers can request as a registration expiration
interval (in seconds).
4.3 Advanced SIP Settings
4.3.1 Networking
