Grandstream Networks HT801 Administration Manual page 26

Authenticate Password
Name
DNS Mode
DNS SRV use Registered IP
DNS SRV Failover Mode
Failback Timer
Register Before DNS SRV Failover
TEL URI
SIP Registration
Unregister on Reboot
Specifies account password provided by VoIP service provider (ITSP) to register to
SIP servers.
Chooses a name to be associated to user.
Selects DNS mode to use for the client to look up server. One mode can be chosen.
Default is A Record.
A Record: resolves IP Address of target according to the domain name.
SRV: DNS SRV resource records indicate how to find services for various protocols.
NAPTR/SRV: Naming Authority Pointer according to RFC 2915.
Use Configured IP: if SIP server is configured as domain name, device will not send
DNS query, but will use "Primary IP" or "Backup IP" to send SIP message if at least
one of them are not empty. It will try to use "Primary IP" first, after 3 tries without
any response, it will switch to "Backup IP 1", then "Backup IP 2", and then it will
switch back to "Primary IP" after 3 re-tries.
When this option is set to "Yes", when the HT is registered on second SRV and
makes an outbound call, it will try the second SRV (registered IP) first.
By default, this option is disabled, and the DNS SRV will use first SRV instead of the
registered IP.
Configure the preferred IP mode for DNS SRV or NAPTR/SRV. If "default" is
selected, first IP from query result will be applied; If "Saved one until DNS TTL" is
selected, previous IP will be applied before reaches DNS timeout; If "Saved one until
no response" is selected, previous IP will be applied even after DNS time out until it
is unreachable.
• Default: If the option is set with "default", it will again try to send register
messages to one IP at a time, and the process repeats.
• Saved one until DNS TTL: If the option is set to "Saved one until DNS TTL", it will
send register messages to the previously registered IP first. If no response, it will
try to send one at a time for each IP. This behavior lasts if DNS TTL (time-to-live) is
up.
• Saved one until no responses: If the option is set with "Saved one until no
responses", it will send register messages to the previously registered IP first, but
this behavior will persist until the registered server does not respond.
When the primary SBC is up, device will send SIP requests to the primary SBC. If at
any point device fails over to the secondary SBC, the SIP requests will stay on the
failover SBC for the duration of the failback timer. When the timer expires, device
will send SIP requests to the primary SBC, (in minutes. Default is 60 minutes, max
45 days).
This feature is used to control whether the device need to initiate a new registration
request (following existing DNS SRV fail-over mode) first and then direct the
nonregistration SIP request (INVITE) to the new successfully registered server or
not.
Indicates E.164 number in "From" header by adding "User=Phone" parameter or
using "Tel:" in SIP packets, if the HT801/HT802 has an assigned PSTN Number.
Disabled: Use "SIP User ID" information in the Request-Line and "From" header.
User=Phone: "User=Phone" parameter will be attached to the Request-Line and
"From" header in the SIP request to indicate the E.164 number. If set to "Enable".
Enabled: "Tel:" will be used instead of "sip:" in the SIP request.
Please consult your carrier before changing this parameter. Default is Disabled.
Controls whether the HT801/HT802 needs to send REGISTER messages to the
proxy server. Default setting is Yes.
Controls whether to clear SIP user's information by sending un-register request to
the proxy server. The un-registration is performed by sending a REGISTER message