Grandstream Networks GSC362 Series User Manual page 38

Local SIP Port
SIP Transport
Stream
Enable DTMF
DTMF Payload Type
Unregister on Reboot
NAT Traversal
Enable SRTP
Special Feature
Sets the local SIP port. Default setting is 5060 for Account 1, 5062 for
Account 2, 5064 for Account 3, 5066 for Account 4.
Chooses the SIP transport protocol. UDP, TCP or TCP/TLS.
Default setting is UDP.
Select the Video stream to be used by the GSC362X when call is made
from this SIP Account.
Default is Stream 2.
Specifies the mechanism to transmit DTMF digits. There are 2 supported
modes:
•
RFC2833 sends DTMF with RTP packet. Users can check the RTP
packet to see the DTMFs sent as well as the number pressed.
•
SIP INFO uses SIP INFO to carry DTMF. Default setting is
"RFC2833"
Configures the payload type for DTMF using RFC2833.
Default value is 101. Range: 96~127.
Allows the SIP user's registration information to be cleared when the GSC
reboots. The SIP REGISTER message will contain "Expires: 0" to unbind
the connection.
This parameter configures whether the NAT traversal mechanism is
activated. Users could select the mechanism from No, STUN, Keep-alive,
UPnP, Auto. The default setting is "No".
If set to "STUN" and STUN server is configured, the GSC will route
according to the STUN server. If NAT type is Full Cone, Restricted Cone or
Port-Restricted Cone, the unit will try to use public IP addresses and port
number in all the SIP&SDP messages.
The GSC will send empty SDP packet to the SIP server periodically to keep
the NAT port open if it is configured to be "Keep-alive". Configure this to be
"No" if an outbound proxy is used. "STUN" cannot be used if the detected
NAT is symmetric NAT. If the firewall and the SIP device behind the firewall
are both able to use UPNP, it can be set to "UPNP". Both parties will
negotiate to use which port to allow SIP through.
Enable SRTP mode based on your selection from the drop-down menu.
The default setting is "Disabled", the two other modes are "Enabled but Not
Forced" and "Enabled and Forced".
Configures GSC settings to meet different vendors' server requirements.
Users can choose from Standard, BroadSoft or Telefonica Spain.
The default setting is "Standard".
GSC362X Series User Manual
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