Grandstream Networks HT801 Administration Manual page 25

Primary SIP Server
Failover SIP Server
Prefer Primary SIP Server
Outbound Proxy
Backup Outbound Proxy
Prefer Primary Outbound Proxy
From Domain
Allow DHCP Option 120 (override SIP
Server)
SIP Transport
SIP URI Scheme When Using TLS
Use Actual Ephemeral Port in Contact
with TCP/TLS
NAT Traversal
SIP User ID
Authenticate ID
tone when picking up the analog phone and making/receiving calls will not be
possible.
Configures SIP server IP address (Supports both IPv4 and IPv6 addresses) or
domain name provided by VoIP service provider. (For example:
sip.mycompany.com, IPv4: 192.168.5.170, or IPv6: 2001:1260:1:277::3). This is the
primary SIP server used to send/receive SIP messages from/to HT8xx.
Defines failover SIP server IP address (Supports both IPv4 and IPv6 addresses) or
domain name provided by VoIP service provider. (For example:
sip.mycompany.com, IPv4: 192.168.5.170, or IPv6: 2001:1260:1:277::3)This server
will be used if primary SIP server becomes unavailable.
Selects to prefer primary SIP server. The account will register to primary Server if
registration with Failover server expires. Default is No.
Specifies IP address (Supports both IPv4 and IPv6 addresses) or domain name of
outbound Proxy, or media gateway, or session border controller. (For example:
proxy.myprovider.com, or IP address, if any: IPv4: 192.168.5.170/ IPv6:
2001:1260:1:277::3). Used by HT801/HT802 for firewall or NAT penetration in
different network environments. If symmetric NAT is detected, STUN will not work,
and only outbound proxy can correct the problem.
Configures the backup outbound proxy to be used when the "Outbound Proxy"
registration fails. (For example: proxy.myprovider.com, or IP address, if any: IPv4:
192.168.5.170/ IPv6: 2001:1260:1:277::3). By default, this field is left empty.
If the user configures this option to "Yes", when registration expires, the device will
re-register via primary outbound proxy.
By default, this option is disabled.
allows users to add the actual domain name, it will override the the header. This is
an optional configuration.
Configures the HT802 to collect SIP server address from DHCP option 120.
Default is No.
Selects transport protocol for SIP packets; UDP or TCP or TLS. Please make sure
your SIP Server or network environment supports SIP over the selected transport
method. Default is UDP.
Specifies if "sip" or "sips" will be used when TLS/TCP is selected for SIP Transport.
The default setting is "sips".
Controls the port information in the Via header and Contact header. If set to "No",
these port numbers will use the permanent listening port on the phone. Otherwise,
they will use the ephemeral port for the connection. The default setting is "No".
Indicates type of NAT for each account. This parameter configures whether the NAT
traversal mechanism is activated. Users could select the mechanism from No,
Keep-alive, STUN, UPnP.
Default setting is No.
Defines user account information provided by VoIP service provider (ITSP). Usually
in the form of digit similar to phone number or actually a phone number.
Determines account authenticate ID provided by VoIP service provider (ITSP). Can
be identical to or different from "SIP user ID".