Telpo TP-64S - Page 40

TP-8/16/24/32/64S User Manual Version No.: V1.2
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It can normally communicate with Voice gateway 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 Voi ce gateway sends heartbeat packet
in a set time. Unit is second.
 Heartbeat silence time: It refers to the quantity of these heartbeat packets without
response which are sent out by Voice gateway. Unit is piece.
Note: If the heartbeat switch starts to work when using DNS to acquire SIP and relay
IP, DNS request will not be sent on a regular basis, and SBC will not be switched
over until cutover to original SBC by network is interrupted.
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;
 Registered flow limit, It can set the number of packets per second
 Switch to backup SBC.
 Switch back to primary SBC.
 SBC Switching.
4.Session
 Session renew: It is closed by default;
 Session renew interval: It means the interval for conversation update;
 Register 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.
 PRACK: It is not started using by default. SIP protocol develops response header
fields.
 Offline interval: when the SBC server is unavailable, resulting in no response to
the registration message, Voice gateway 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,
fax/modem or x-fax/x-modem.
 Phone number format:respectively, normal and escape characters.