Voice Gateway 4FXS User Manual
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Explanations:
1、1. NAT: Usually, IAD in intranet is in need of turning on NAT penetration. It can
normally communicate with IAD once used in SIP platform;
NAT Stun: It defaults to being open;
NAT keepalive Interval: It is 5 seconds by default;
2. Heartbeat
Heartbeat switch: It is set to send heartbeat parameters to platform, not
turned on by default;
Heartbeat Interval: It refers to the cycle that IAD sends heartbeat packet in a
set time. Unit is second.
Heartbeat Threshold: It refers to the quantity of these heartbeat packets
without response which are sent out by IAD. Unit is piece.
3. Register
Registered switch mode, the option means use option message as judgment
way of SBC switch. The register does not use option message mode, with the
number of success or failure as a judgment way;
Register Flow Limit, It can set the number of packets per second
Be allowed to fall back to backup SBC
Be allowed to fall back to the primary SBC
To manually switch SBC
4. Session
Session Update: It is closed by default;
Session Update Interval: It means the interval for session update;
Initial registration with authorization: It needs clicking when platform
supports SIP DIGIST notarization. While it needs closing when platform
supports HTTP digist notarization. Close is defaulted.
SIP URI with User parameters: It refers to the configured parameters
connected with platform.
Offline interval: when the SBC server is unavailable, resulting in no response to
the registration message, IAD initiates a registration request to the SBC
server at an offline interval;
CallerID Mode: Get the explicit number from the From header field or the PPI
(P-Prefered-Identity) header field
Fax bypass parameters: set the parameters that are incidental to the fax
negotiation in order to accommodate different platform requirements,