Grandstream Networks HT812 Series Administration Manual page 21

Enable RTCP Allows users to enable RTCP. The default setting is "Yes".
Allows user to hold or not hold the phone call before referring.
Hold Target
Before Refer The default setting is Yes.
Refer-To Use
Includes target's "Contact" header information in "Refer-To" header when using attended transfer. Default is No.
Target Contact
If set to "Yes", when the phone hangs up as the conference initiator, the conference call will be transferred to the other
Transfer on
parties so that other parties will remain in the conference call.
Conference
Hang-up Default setting is No.
Disable Bellcore
Gives the users the possibility of making conference calls by pressing "Flash" key, when it's enabled by dialing *23
Style 3-Way
+second callee number. Default is No
Conference
Remove OBP
Removes outbound proxy info in "Route" header when sending SIP packets.
from Route
Default is No.
Header
Includes "SIP Instance ID" attribute to "Contact" header in REGISTER request as defined in IETF SIP outbound
Support SIP
draft.
Instance ID
Default is No.
Validate
Incoming SIP Validates incoming SIP messages. Default is No.
Messages
Check SIP User
Checks SIP User ID in the Request URI of incoming INVITE; if it doesn't match the HT81x SIP User ID, the call will
ID for Incoming
be rejected. Direct IP calling will also be disabled. Default is No.
INVITE
Authenticate
Challenges the incoming INVITE for authentication with SIP 401 Unauthorized message.
Incoming
Default is No.
INVITE
Authenticate
Server Configures whether to validate the domain certificate when download the firmware/config file. If it is set to "Yes", the
Certificate phone will download the firmware/config file only from the legitimate server. The default setting is "No".
Domain
Authenticate
Configures whether to validate the server certificate when download the firmware/config file. If it is set to "Yes", the
server certificate
phone will download the firmware/config file only from the legitimate server. The default setting is "No".
chain
Allow Incoming
Checks SIP address of the Request URI in the incoming SIP message; if it doesn't match the SIP server address of the
SIP Messages
account, the call will be rejected.
from SIP Proxy
Default is No.
Only
Determines if the "Privacy header" will be presented in the SIP INVITE message and if it includes the caller info in
Use Privacy
this header. If set to Default, it will add Privacy header unless special feature is Telkom SA or CBCOM. Default
Header
is Default.
Specifies if the P-Preferred-Identity Header will be presented in the SIP INVITE message. If set to "default", the P-
Use P-Preferred- Preferred-Identity Header will be omitted in SIP INVITE message when Telkom SA or CBCOM is active. If set to
Identity Header "Yes", the P-Preferred- Identity Header will always be presented. If set to "No", it will be omitted. Default setting
is: Default.
Use P-Access-
With this feature enabled, device will populate the WAN access node with IEE-802.11a, IEE-802.11b in P-Access-
Network-Info
Network-Info SIP header.
Header
Use P-
Emergency-Info This feature support of IEEE-48-addr and IEEE-EUI-64 in SIP header for emergency calls.
Header
When this feature is set to Yes, device will send P-Asserted-Identity Header on the SIP Invite.
Use P-Asserted-
Identity Header
Default setting is No.
SIP REGISTER
Specifies which address (LAN or WAN address) the device will detect to use it in SIP Register Contact Header.
Contact Header
Default is LAN Address.
Uses
Selects the Caller ID display order which need to be respected by the ATA.
The available options are:
Caller ID Fetch Auto: When set to "Auto", the ATA will look for the caller ID in the order of P-Asserted Identity Header, Remote-
Order Party-ID Header and From Header in the incoming SIP INVITE.
Disabled: When set to "Disabled", all incoming calls are displayed with "Unavailable".
From Header: When set to "From Header", the ATA will use the FROM header to display the caller ID.
Allows to reset the devices directly through SIP Notify. If "Allow SIP Factory Reset" is set to "YES" under FXS
PORT, then the ATA receives the NOTIFY from the SIP server with Event: reset, the HT should perform a factory
reset after the authentication.
Allow SIP
The authentication in this case can be either with:
Factory Reset
The admin password if no SIP account is configured on the HT.
With the credentials of the SIP account if configured on the ATA.