Grandstream Networks GSC35 Series User Manual page 39

SIP OPTIONS Keep Alive
Interval (s)
SIP OPTIONS Keep Alive
Maximum Tries
Subscribe for MWI
Use Privacy Header
Use P-Preferred-Identity
Header
SIP Transport
Local SIP Port
SIP URI Scheme When
Using TLS
Configures the time interval when the device sends OPTIONS message to
SIP server. The default value is 30 seconds, in order to send an OPTIONS
message to the server every 30 seconds. The default range is 1-64800.
Configures the maximum times of sending OPTIONS message
consistently from the device to server. Phone will keep sending OPTIONS
messages until it receives response from SIP server. The default setting is
"3", which means when the device sends OPTIONS message for 3 times,
and SIP server does not respond this message, the device will send RE-
REGISTER message to register again. The valid range is 3-10.
When set to "Yes", a SUBSCRIBE for Message Waiting Indication will be
sent periodically. The GSC3505/3510 support synchronized and non-
synchronized MWI.
Controls whether the Privacy header will present in the SIP INVITE
message or not, whether the header contains the caller info. Do not use
the privacy header fields by default in Huawei IMS mode. If set to "Yes",
the Privacy Header will always show in INVITE. If set to "No", the Privacy
Header will not show in INVITE.
Controls whether the P-Preferred-Identity header will present in the SIP
INVITE message or not, whether the header contains the caller info. Do
not use the P-Preferred-Identity header fields by default in Huawei IMS
mode. If set to "Yes", the P-Preferred-Identity Header will always show in
INVITE. If set to "No", the P-Preferred-Identity Header will not show in
INVITE.
Determines which network protocol will be used to transport the SIP
message. It can be selected from TCP/UDP/TLS.
Default setting is "UDP".
Determines the local SIP port used to listen and transmit. The default
setting is 5060 for Account 1, 5062 for Account 2, 5064 for Account 3, 5066
for Account 4, 5068 for Account 5, and 5070 for Account 6. The valid range
is from 5 to 65535.
Defines which SIP header, "sip" or "sips", will be used if TLS is selected
for SIP Transport.
The default setting is "sip".
GSC35XX Series User Manual
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