Network Address Translation (Nat); Nat Traversal Configuration - Yealink SIP-T3 Administrator's Manual

1-reject RTP packets arriving from a non-negotiated IP address
Values 2-reject RTP packets arriving from a non-negotiated port
3-reject RTP packets arriving from a non-negotiated IP address or a non-negotiated port
Default 0

Network Address Translation (NAT)

NAT enables phones with private unregistered addresses to communicate with devices with globally unique
registered addresses.
Topics

NAT Traversal Configuration

Keep Alive Configuration
Rport Configuration
SIP Port and TLS Port Configuration
NAT Traversal Configuration
The phones can traverse NAT gateways to establish and maintain connections with external devices.
Yealink phones support three NAT traversal techniques: manual NAT, STUN and ICE. If you enable manual NAT
and STUN, the phone will use the manually-configured external IP address for NAT traversal. The TURN protocol is
used as part of the ICE approach to NAT traversal.
The following table lists the parameters you can use to configure NAT traversal.
Parameter account.X.nat.nat_traversal
It enables or disables the NAT traversal for a specific account.
Description
Note: If it is set to 1 (STUN), it works only if "static.sip.nat_stun.enable" is set to 1 (Enabled); if it is set
to 2 (Manual NAT), it works only if "static.network.static_nat.enable" is set to 1 (Enabled).
0-Disabled
Permitted
1-STUN
Values
2-Manual NAT
Default
0
Web UI Account > Register > NAT
Color Screen Phones:
Menu > Advanced (default password: admin) > Accounts > Account X > NAT Status
CP925/CP935W:
Phone UI More > Advanced (default password: admin) > Accounts > Account X > NAT Status
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Accounts > AccountX > NAT Status
Note: Manual NAT cannot be configured via the phone user interface.
Parameter static.network.static_nat.enable
Description It enables or disables the manual NAT feature.
Permitted
0-Disabled
Values 1-Enabled
[1]
<MAC>.cfg
<y0000000000xx>.cfg
Network Configurations
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