Yealink T21PE2 - Real-Time Transport Protocol (RTP) Ports; RTP Ports Configuration

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
44
or
Menu->Settings->Basic Settings->Wi-Fi->Wi-Fi (On)->Known Network->Option->Edit->WPA Shared
Key
Parameter static.wifi.show_scan_prompt <y0000000000xx>.cfg
Description
It enables or disables the IP phone to prompt you whether to scan Wi-Fi after connecting Wi-Fi USB
dongle WF40/WF50 to the IP phone.
Note: It is only applicable to T54S/T52S/T48S/T48G/T46S/T46G/T42S/T41S/T29G/T27G IP phones.
Permitted
Values
0-Disabled, the IP phone will enable the Wi-Fi feature and try to connect to the known wireless network
(according to the priority) automatically. But if the IP phone fails to connect to any known wireless net-
work, the IP phone will still display the Wi-Fi scanning prompt when connecting WF40/WF50 to the IP
phone.
1-Enabled
Default 1
[1]
If you change this parameter, the IP phone will reboot to make the change take effect.
[2]
X is Wi-Fi ID. X=1-5.
Real-Time Transport Protocol (RTP) Ports
You can specify the IP phone’s RTP port range. Since the IP phone supports conferencing and multiple RTP streams, it
can use several ports concurrently. The UDP port used for RTP streams is traditionally an even-numbered port. For
example, the default RTP min port on the IP phones is 11780. The first voice session sends RTP using port 11780. Addi-
tional calls would then use ports 11782, 11784, 11786, and so on. The phone is compatible with RFC 1889 - RTP: A Trans-
port Protocol for Real-Time Applications - and the updated RFC 3550.
Topic
RTP Ports Configuration
RTP Ports Configuration
The following table lists the parameters you can use to configure RTP ports.
Parameter
static.network.port.min_rtpport
[1]
<y0000000000xx>.cfg
Description It configures the minimum local RTP port.
Permitted
Values
Integer from 1024 to 65535
Default 11780
Web UI Network->Advanced->Local RTP Port->Min RTP Port (1024~65535)
Parameter
static.network.port.max_rtpport
[1]
<y0000000000xx>.cfg
Description
It configures the maximum local RTP port.
Note: The value of the maximum local RTP port cannot be less than that of the minimum local RTP port.
Permitted
Values
Integer from 1024 to 65535
Default 12780