Video
Video Codecs
Enable/disable the use of video codecs for call setups and set their priorities.
Extended Codec Settings
Enabled – enable the packetization mode and set the payload type for each codec. The payload type can be
selected automatically in case it cannot be set manually.
SDP Payload Type – set the payload type for video codec H.264 (packetization mode 1). Set a value from
the range of 96 through 127, or 0 to disable this codec type.
Audio
Audio Codecs
Enable/disable the use of audio codecs for call setups and set their priorities in this block.
DTMF Sending
This block helps you define how DTMF characters shall be sent from the device. Check the opponent’s
DTMF receiving options and settings to make the function work properly.
In-Band (Audio) – enable the classic method of sending DTMF in the audio band using standardized dual
tones.
RTP (RFC-2833) – enable DTMF sending via the RTP according to RFC-2833.
SIP INFO (RFC-2976) – enable DTMF sending via SIP INFO messages according to RFC-2976.
DTMF Receiving
This block helps you define how DTMF characters shall be received from the intercom. Check the oppo-
nent’s DTMF sending options and settings to make the function work properly.
In-Band (Audio) – enable classic DTMF dual tone receiving in the audio band.
RTP (RFC-2833) – enable DTMF receiving via RTP according to RFC-2833.
SIP INFO (RFC-2976) – enable DTMF receiving via SIP INFO messages according to RFC-2976.
Transmission Quality Settings
QoS DSCP Value – set the audio RTP packet priority in the network. The set value is sent in the TOS (Type
of Service) field in the IP packet header.
Jitter Compensation – set the buffer length for compensation of interval unevenness in audio packet
arrivals. Set a higher value to increase the receiving immunity at the cost of a higher sound delay.
Local Calls
Configuration
Enable Local Calls – enable calls between 2N devices in the LAN. With this function off, the other LAN
devices cannot locate this device, i.e. cannot call the device in the device:device_ID format.
Network Identification
Device ID – set the device ID to be displayed in the LAN device list in all the 2N devices in one and the
same LAN. You can direct a call to this device by setting the user phone number as “device:device_ID” in
these devices.
Test Call – display a dialog box enabling you to make a test call to a selected phone number, see below.
Software Configuration
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