Yealink SIP-T21 E2 Administrator's Guide

Setting Up Your System
105
sip.nat_turn.username
sip.nat_turn.password
Configure local SIP port and TLS SIP port.
Parameters:
sip.listen_port
sip.tls_listen_port
<MAC>.cfg
Configure NAT traversal on a per-line
basis.
Parameter:
account.X.nat.nat_traversal
Web User Interface
Configure manual NAT feature on a
phone basis.
Configure ICE feature.
Configure TURN feature and TURN
server.
Configure STUN feature and STUN server
on a phone basis.
Navigate to:
http://<phoneIPAddress>/servlet?p=net
work-nat&q=load
Configure local SIP port and TLS SIP port.
Navigate to:
http://<phoneIPAddress>/servlet?p=setti
ngs-sip&q=load
Configure NAT traversal on a per-line
basis.
Navigate to:
http://<phoneIPAddress>/servlet?p=acco
unt-register&q=load&acc=0
Phone User Interface
Configure STUN feature and STUN server
on a phone basis.
Configure NAT traversal on a per-line
basis.

Yealink SIP-T21 E2 Specifications

General

Brand	Yealink
Model	SIP-T21 E2
Category	IP Phone
Language	English