AudioControl VERSION 6.2 manual PingPongKeepAliveTime, Rtcp XR Parameters, VQMonEnable, VQMonGMin

	CPE SIP Products
Parameter	Description
CRLF Keep-Alive Mode Parameters
[UsePingPongKeepAlive]	Determines whether the carriage-return and line-feed sequences
	(CRLF) Keep-Alive mechanism, according to RFC 5626 “Managing
	Client-Initiated Connections in the Session Initiation Protocol (SIP)” is
	used for reliable, connection-orientated transport types such as TCP.
	[0] Disable (default)
	[1] Enable
	The SIP user agent/client (i.e., device) uses a simple periodic
	message as a keep-alive mechanism to keep their flow to the proxy or
	registrar alive (used for example, to keep NAT bindings open). For
	connection-oriented transports such as TCP/TLS this is based on
	CRLF. This mechanism uses a client-to-server "ping" keep-alive and a
	corresponding server-to-client "pong" message. This ping-pong
	sequence allows the client, and optionally the server, to tell if its flow is
	still active and useful for SIP traffic. If the client does not receive a
	pong in response to its ping, it declares the flow “dead” and opens a
	new flow in its place. In the CRLF Keep-Alive mechanism the client
	periodically sends a double-CRLF (the "ping") then waits to receive a
	single CRLF (the "pong"). If the client does not receive a "pong" within
	an appropriate amount of time, it considers the flow failed.
	Note: The device sends a CRLF message to the Proxy Set only if the
	Proxy Keep-Alive feature (EnableProxyKeepAlive parameter) is
	enabled and its transport type is set to TCP or TLS. The device first
	sends a SIP OPTION message to establish the TCP/TLS connection
	and if it receives any SIP response, it continues sending the CRLF
	keep-alive sequences.
Ping-Pong Keep-Alive Time	Defines the periodic interval (in seconds) after which a “ping” (double-
[PingPongKeepAliveTime]	CRLF) keep-alive is sent to a proxy/registrar, using the CRLF Keep-
	Alive mechanism.
	The default range is 5 to 2,000,000. The default is 120.
	The device uses the range of 80-100% of this user-defined value as
	the actual interval. For example, if the parameter value is set to 200
	sec, the interval used is any random time between 160 to 200
	seconds. This prevents an “avalanche” of keep-alive by multiple SIP
	UAs to a specific server.
RTCP XR Parameters
Enable RTCP XR	Enables voice quality monitoring and RTCP XR, according to draft-ietf-
[VQMonEnable]	sipping-rtcp-summary-13.
	[0] Disable = Disable (default)
	[1] Enable = Enables
	Note: For this parameter to take effect, a device reset is required.
Minimum Gap Size	Voice quality monitoring - minimum gap size (number of frames). The
[VQMonGMin]	default is 16.
Burst Threshold	Voice quality monitoring - excessive burst alert threshold. if set to -1
[VQMonBurstHR]	(default), no alerts are issued.
Delay Threshold	Voice quality monitoring - excessive delay alert threshold. if set to -1
[VQMonDelayTHR]	(default), no alerts are issued.

SIP Release Notes 90 Document #: LTRT-26901