Grandstream Networks WP820 Administration Manual page 21

Keep means when the phone sends OPTIONS message for 3 times, and SIP server does not respond this message, the
Alive phone will send RE-REGISTER message to register again. The valid range is 3-10.
Maxim
um
Tries
Subscr Configures the phone to subscribe voice message service. If it is set to "Yes", the phone will periodically send SIP
ibe for SUBSCRIBE message for Message Waiting Indication service. WP820 phone supports both synchronized and non-
MWI synchronized MWI. The default setting is "No".
Determines if the Privacy header will be presented in the SIP INVITE message and if it includes the caller info in
Use
this header. If it is set to "Default", the Privacy Header will be omitted in INVITE when "Huawei IMS" special feature
Privacy
is active. If set to "Yes", it will always be presented. If set to "No", it will always be omitted. The default setting is
Header
"Default".
Use P-
Specifies if the P-Preferred-Identity Header will be presented in the SIP INVITE message. If set to "default", the P-
Preferr
ed- Preferred-Identity Header will be omitted in SIP INVITE message when "Huawei IMS" special feature is active. If
set to "Yes", the P-Preferred-Identity Header will always be presented. If set to "No", it will be omitted. The default
Identit
y setting is "Default".
Header
Use P-
Access
-
Use P-Access-Network-Info header in SIP request.
Networ
k-Info
Header
Use P-
Emerg
ency- Use P-Emergency-Info header in SIP request.
Info
Header
Use Configures whether to use MAC header for SIP. If set to "No", all SIP REGISTER messages will not contain MAC
Mac header. If set to "Only for REGISTER", MAC header will only be included in SIPREGISTER and UNREGISTER
Header messages. If set to "Yes to All SIP", all outgoing SIP REGISTER messages will contain MAC header. Default is No.
Add Configures whether to add MAC address in User-Agent header. If set to "No", all outgoing SIP messages will not
MAC in attach MAC address to the User-Agent header; If set to "Yes except REGISTER", all outgoing SIP messages except
User- REGISTER message will attach the MAC address to the User-Agent header; If set to "Yes to All SIP", all outgoing
Agent SIP messages including REGISTER message will attach MAC address to the User-Agent header. Default is No.
SIP
Determines the network protocol used for the SIP transport. Users can choose from TCP/UDP/TLS. Default setting
Transp
is "UDP".
ort
Local
Defines the local SIP port used to listen and transmit. The default value is 5060 for Account 1 and 5062 for
SIP
Account 2.
Port
SIP
URI
Schem Defines which SIP header, "sip" or "sips", will be used if TLS is selected for SIP Transport. The default setting is
e When "sip".
Using
TLS
Use Determines the port information in the Via header and Contact header of SIP message when the phone use TCP or
Actual TLS. If set to No, these port numbers will use the permanent listening port on the phone. Otherwise, they will use