| Configuring Account Settings | 80
Parameter Description Configuration Method
RPort
Enable or disable the RPORT
feature on the device.
When the VCS is behind a NAT
device, you can enable this
feature for the port traversal with
the SIP server.
Default: Disabled.
The Rport feature need the
support of the SIP server. For
more information, refer to RFC
3581.
Web user interface
Note: If you want to use SIP Account to make private-to-public calls, you also need to enable
the static NAT settings or STUN feature for the SIP protocol.
Related tasks
Configuring STUN
Related information
NAT
Configuring SIP IP Call
You can use the SIP protocol for SIP IP call, which means dialing the IP address of the other party instead
of the account. If you do not want the third-party or Yealink old devices (for example, VC110/VC120/
VC400/T49G or VC800/VC500/VC200 running firmware version 40 or earlier) to make IP calls to you, you
can enable the advanced security feature and set the IP call password. For VC880/VC800/VC500/VC200/
PVT980/PVT950, you can also disable SIP IP call feature to prevent unknown public network attacks.
About this task
The SIP IP call feature on VP59 controls SIP IP call in and SIP IP call out.
Procedure
1. Do one of the following:
• On your web user interface, go to Account > SIP IP Call.
• On your VCS, go to More > Setting > Advanced > SIP IP Call Out.
On your VP59, tap Setting > Advanced > SIP IP Call.
• On your CTP20, tap Setting > Advanced > SIP IP Call Out.
2. Configure and save the following settings:
Parameter Description Configuration Method
SIP IP Incoming (is not
applicable to VP59)
Enable or disable the SIP IP
Incoming. If it is enabled, the
system can receive an IP address
call directly.
Note: the default value is Off.
Web user interface