Grandstream Networks GSC35 Series User Manual

GSC35XX Series User Manual
Version 1.0.0.15
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Enable SRTP Key Life
Time
Defines the SRTP key life time. When this option is set to be enabled,
during the SRTP call, the SRTP key will be valid within 2
31
SIP packets,
and phone will renew the SRTP key after this limitation.
The default setting is “Yes”.
RTCP Destination
Configures a remote server URI where RTCP messages will be sent to
during an active call.
Symmetric RTP
Configures if the device enables the symmetric RTP mechanism.
If it is set to “Yes”, the device 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 device only receives
the RTP packets from the specified IP address based on the
communication protocol; If it is set to “IP and Port”, the device will receive
the RTP packets from the specified IP address with the specified port
based on the communication protocol. The default setting is “Disable”.
Call Settings
Call Features
Play Warning Tone for
Auto Answer Intercom
When this option is enabled, the device will play a warning tone When auto-
answering intercom. The default setting is “yes”.
Send Anonymous
If set to "Yes", the "From" header in outgoing INVITE messages will be set
to anonymous, essentially blocking the Caller ID to be displayed.
Intercept Anonymous
Calls
If set to "Yes", anonymous calls will be rejected.
Call Log
Categorizes the call logs saved for this account. If it is set to “Log All”, all
the call logs of this account will be saved. If set to “Log Incoming/Outgoing
Calls (Missed Calls Not Record)”, the whole call history will be saved other
than missed call. If it is set to “Disable Call All”, none of the call history will
be saved. If it is set to “Don’t Prompt Missed Call”, the device will log the
missed call histories, but there is no prompt to indicate the missed calls.
The default setting is “Log All”.
Ring Timeout (s)
Defines the expiration timer (in seconds) for the rings with no answer. The
default setting is 60. The valid range is from 10 to 300.

Grandstream Networks GSC35 Series Specifications

General

Brand	Grandstream Networks
Model	GSC35 Series
Category	Intercom System
Language	English