Account/Call Settings - Grandstream Networks WP820 Administration Manual

SRTP Key Length
Configures all the AES (Advanced Encryption Standard) key size within SRTP. It
can be selected from dropdown list:
If it is set to "AES 128&256 bit", the phone will provide both AES 128 and 256
cipher suite for SRTP. If set to "AES 128 bit", it only provides 128-bit cipher suite;
if set to "AES 256 bit", it only provides 256-bit cipher suite.
The default setting is "AES128&256 bit".
Enable SRTP Key Defines the SRTP key life time. When this option is set to be enabled, during the
Life Time SRTP call, the SRTP key will be valid within 2
renew the SRTP key after this limitation. Default is "Yes".
RTCP Destination Configures the server address. When there is a call, the RTCP package sent from
the phone will also be sent to this address.
Note: The address should contain port number.
Symmetric RTP
Configures if the phone enables the symmetric RTP mechanism.
If it is set to "Yes", the phone will use the same socket/port for sending and
receiving the RTP messages. The default setting is "No".
RTP IP Filter
Receives the RTP packets from the specified IP address and Port by
communication protocol. If it is set to "IP Only", the phone only receives the RTP
packets from the specified IP address based on the communication protocol; If it
is set to "IP and Port", the phone will receive the RTP packets from the specified
IP address with the specified port based on the communication protocol. The
default setting is "Disable".

Account/Call Settings

Call Features
Auto Answer If set to "Yes", the phone will automatically turn on the speaker to answer
incoming calls after a short reminder beep.
If set to "Enable Intercom/Paging", it will answer the call based on the SIP Info
header sent from the server/proxy.
The default setting is "No".
Play Warning Tone When enabled, the phone will play warning tone when auto answer Intercom. By
for Auto Answer default, it's enabled.
Intercom
•
AES128&256 bit
•
AES 128 bit
•
AES 256 bit
WP820 Administration Guide
Version 1.0.1.15
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