Grandstream Networks GRP261 Series Administration Manual page 37

Validate Incoming Messages
Omit charset=UTF-8 in MESSAGE
Allow Unsolicited REFER
Accept Incoming SIP from Proxy Only
Check SIP User ID for Incoming
INVITE
Allow SIP Reset
Authenticate Incoming INVITE
MOH
On Hold Reminder Tone
Music On Hold URI
Advanced Features
Special Feature
Feature Key Synchronization
Conference URI
Broadsoft Call Center
Choose whether the incoming messages will be validated or not.
The default setting is "No".
Omit charset=UTF-8 in MESSAGE content-type.
The default setting is "Disabled".
Allow Unsolicited REFER to accomplish an outgoing call.
● Disabled
● Enabled
● Enabled/Force Auth
The default setting is "Disabled".
When set to "Yes", the SIP address of the Request URL in the incoming SIP
message will be checked. If it doesn't match the SIP server address of the
account, the call will be rejected.
The default setting is "No".
If set to "Yes", SIP User ID will be checked in the Request URI of the incoming
INVITE. If it doesn't match the phone's SIP User ID, the call will be rejected.
The default setting is "No".
This is used to perform a factory reset through SIP NOTIFY. When the phone
receives the NOTIFY with Event: reset, the phone should perform a factory
reset after the authentication. The default setting is "No".
If set to "Yes", the phone will challenge the incoming INVITE for authentication
with SIP 401 Unauthorized response
Default setting is "No".
If set to "Enabled", phone will play a reminder tone when it has a call on hold.
The default setting is "Enabled".
Configures Music On Hold URI to call when a call is on hold. This feature must
be supported on the server side.
Different soft switch vendors have special requirements. Therefore, users may
need select special features to meet these requirements. Users can choose
from Standard, Nortel MCS, Broadsoft, CBCOM, RNK, Sylantro, Huawei IMS,
PhonePower and UCM Call center depending on the server type. The default
setting is "Standard".
This feature is used for Broadsoft call feature synchronization. When it's
enabled, DND, Call Forward features and Call Center Agent status can be
synchronized between Broadsoft server and phone. Default is "Disabled".
Configures Conference URI for N-way conference (Broadsoft Standard).
When set to "Yes", a Softkey "BSCCenter" is displayed on LCD. User can
access different Broadsoft Call Center agent features via this Softkey.
Please note that "Feature Key Synchronization" will be enabled regardless of
this setting. Default setting is "Disabled".
Note: To activate this feature, users need to change the special feature to
Broadsoft and setup the Broadsoft Call Center to take effect.