Grandstream Networks HT813 Administration Manual page 31

Disable
Bellcore
Gives the users the possibility of making conference calls by pressing "Flash" key, when it is enabled by
Style 3-
dialing *23 +second callee number. Default is No
Way
Conference
Remove
OBP from
Removes outbound proxy info in "Route" header when sending SIP packets.
Route
Default is No.
Header
Support
Includes "SIP Instance ID" attribute to "Contact" header in REGISTER request as defined in IETF SIP outbound
SIP
draft. Default is No.
Instance ID
Validate
Incoming
Validates incoming messages. Default is No.
SIP
Messages
Check SIP
User ID for Checks SIP User ID in the Request URI of incoming INVITE; if it does not match the HT813 SIP User ID, the
Incoming call will be rejected. Direct IP calling will also be disabled. Default is No.
INVITE
Authentica
te
Challenges the incoming INVITE for authentication with SIP 401 Unauthorized message. Default is No.
Incoming
INVITE
Authentica
Configures whether to validate the domain certificate when download the firmware/config file. If it is set to
te server
"Yes", the phone will download the firmware/config file only from the legitimate server. The default setting is
certificate
"No".
domain
Authentica
Configures whether to validate the server certificate when download the firmware/config file. If it is set to
te server
"Yes", the phone will download the firmware/config file only from the legitimate server. The default setting is
certificate
"No".
chain
Trusted CA Uses the certificate for Authentication if "Check Domain Certificates" is set to "Yes" under "Account"��"SIP
Certificates Settings".
Allow
Incoming
SIP Checks SIP address of the Request URI in the incoming SIP message; if it does not match the SIP server
Messages address of the account, the call will be rejected. Default is No.
from SIP
Proxy Only
Determines if the "Privacy header" will be presented in the SIP INVITE message and if it includes the caller
Use Privacy
info in this header. If set to Default, it will add Privacy header unless special feature is Telkom SA or CBCOM.
Header
Default is Default.