Grandstream Networks GDS3705 User Manual

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GDS3705 User Manual
Version 1.0.1.16
SIP Advanced Settings
Registration Expiration
(m)
Sets the registration expiration time.
Default setting is 60 minutes. Valid range is from 1 to 64800 minutes.
Re-register before
Expiration (s)
Specifies the time frequency (in seconds) that the GDS3705 sends re-
registration request before the Register Expiration. The default value is 0.
Range is from 0 to 64800 seconds.
Local SIP Port
Sets the local SIP port. Default setting is 5060 for Account 1, 5062 for
Account 2, 5064 for Account 3, 5066 for Account 4.
SIP Transport
Chooses the SIP transport protocol. Default settings is UDP.
Enable DTMF
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"
DTMF Payload Type
Configures the payload type for DTMF using RFC2833.
Default value is 101.
Range: 96~127.
Enable Keep Alive
Checks to help NAT resolution, sending alive packets.
Unregister On Reboot
Allows the SIP user's registration information to be cleared when the
GDS3705 reboots. The SIP REGISTER message will contain “Expires: 0”
to unbind the connection
NAT Traversal
This parameter configures whether the NAT traversal mechanism is
activated. Users could select the mechanism from No, STUN, Keep-alive,
UPnP, Auto or VPN. The default setting is “No”.
If set to “STUN” and STUN server is configured, the GDS3705 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 GDS 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. Set this to “VPN” if OpenVPN is used.
Enable SRTP
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”.

Grandstream Networks GDS3705 Specifications

General

Brand	Grandstream Networks
Model	GDS3705
Category	Intercom System
Language	English