IPPBX IP2G4A User Manual
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Address that we're going to put in outbound SIP messages if we're behind a NAT. The externip and localnet is
used when registering and communicating with other proxies that we're registered with.
External Host
Alternatively you can specify an external host, and IPPBX will perform DNS queries periodically. Not
recommended for production environments! Use External IP instead.
External Refresh Interval
How often to refresh External Host if used.
NAT Mode
Global NAT settings (Affects all peers and users), is used when Asterisk is on a public IP, communicating with
devices hidden behind a NAT device (broadband router). If you have one-way audio problems, you usually have
problems with your NAT configuration or your firewall's support of SIP+RTP ports.
Local Network identification
You may add multiple local networks. A reasonable set of defaults are set here.
Allow RTP Reinvite
By default, Asterisk tries to re-invite the audio to an optimal path. If there's no reason for IPPBX to stay in the
media path, the media will be redirected. This does not really work with in the case where IPPBX is outside and
have clients on the inside of a NAT. In that case, you want to set this option to no nat.
8.11 IAX Settings
UDP Port
Port use for IAX2 registrations, Default is 4569.
Bandwidth
Low/medium/high with this option you can control which codec to be used.
Min Registration Time
Minimum duration (in seconds) of a IAX2 registration. Default is 60 seconds.
Max Registration Tim
e
Maximum duration (in seconds) of a IAX2 registration. Default is 1200 seconds.
9. Audios
9.1 Music On Hold
Manage audio files for Music On Hold, the format should be .WAV (16 bit, mono 8000 Hz) and .GSM, the size
should less than 4 MB.
