Grandstream Networks HT813 Administration Manual page 28

Activates / Deactivates the accounts. The FXS port configuration will not change if disabled, although the
Account
port will not be operational, in this state, there will be no dial tone when picking up the analog phone and
Active
making/receiving calls will not be possible.
Primary SIP Configures SIP server IP address or domain name provided by VoIP service provider. This is the primary SIP
Server server used to send/receive SIP messages from/to HT813.
Specifies failover SIP server IP address or domain name provided by VoIP service provider.
Failover SIP
Server
This server will be used if the primary SIP server becomes unavailable.
Selects to prefer primary SIP server. The account will register to primary Server if registration with Failover
Prefer
server expires.
Primary SIP
Server
Default is No.
Specifies IP address or domain name of outbound Proxy, or media gateway, or session border controller.
Outbound
Used by HT813 for firewall or NAT penetration in different network environments. If symmetric NAT is
Proxy
detected, STUN will not work and only outbound proxy can correct the problem.
Backup
Configures the backup outbound proxy to be used when the "Outbound Proxy" registration fails. By default,
Outbound
this field is left empty.
Proxy
Prefer
If the user configures this option to "Yes", when registration expires, the device will re-register via primary
Primary
outbound proxy.
Outbound
By default, this option is disabled.
Proxy
Allow
DHCP
Configures the HT813 to collect SIP server address from DHCP option 120.
Option 120
Default is No.
(override
SIP Server)
SIP Selects transport protocol for SIP packets; UDP or TCP or TLS. Please make sure your SIP Server or network
Transport environment supports SIP over the selected transport method. Default is UDP.
SIP URI
Scheme
Specifies if "sip" or "sips" will be used when TLS/TCP is selected for SIP Transport. The default setting is "sips".
When
Using TLS
Use Actual
Ephemeral
Controls the port information in the Via header and Contact header. If set to "No", these port numbers will
Port in
use the permanent listening port on the phone. Otherwise, it will use the ephemeral port for the connection.
Contact
The default setting is "No".
with
TCP/TLS
NAT Indicates type of NAT for each account. This parameter configures whether the NAT traversal mechanism is
Traversal 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
SIP User ID
to phone number or actually a phone number.
Authentica Determines account authenticate ID provided by VoIP service provider (ITSP). Can be identical to or different
te ID from "SIP user ID".