Aastra Telecom 41-001343-02 Advanced SIP Settings, Ing for Sylantro and Broadsoft Servers on

			Administrator Level Options
Parameter In	Parameter in	Parameters in Configuration	Description
IP Phone UI	Aastra Web UI	Files
Registrar Port	Registrar Port	sip registrar port	SIP registrar’s port number. Default is 0.
		(global)
	(Global and Per-Line)		For more information, see Chapter 4, “Basic SIP Settings” on
		sip lineN registrar port	page 4-55.
		(per-line)
N/A	Backup Registrar Server	sip backup registrar ip	The address of the backup registrar (typically, the backup SIP
		(global)	proxy) for which the IP phone uses to send REGISTER requests
	(Global and Per-Line)		if the primary registrar is unavailable.
		sip lineN backup registrar ip	For more information, see Chapter 4, “Basic SIP Settings” on
		(per-line)
			page 4-55.
N/A	Backup Registrar Port	sip backup registrar port	The backup registrar's (typically the backup SIP proxy) port
		(global)	number.
	(Global and Per-Line)		For more information, see Chapter 4, “Basic SIP Settings” on
		sip lineN backup registrar port
			page 4-55.
N/A	Registration Period	sip registration period	The requested registration period, in seconds, from the regis-
		(global)	trar.
	(Global and Per-Line)		For more information, see Chapter 4, “Basic SIP Settings” on
		sip lineN registration period
		(per-line)	page 4-55.
N/A	Conference Server URI	sip centralized conf	Globally enables or disables SIP centralized conferencing for
		(global)	an IP phone.
	(Global and Per-Line)		For more information, see Chapter 4, “Centralized Conferenc-
		sip lineN centralized conf
		(per-line)	ing (for Sylantro and Broadsoft Servers)” on page 5-266.

Advanced SIP Settings

In addition to the basic SIP settings, you can also configure the following advanced SIP parameters. These parameters may be configurable via the Aastra Web UI and/or the configuration files.

Parameter in	Parameters in Configuration Files	Description
Aastra Web UI
Explicit MWI Subscription	sip explicit mwi subscription	If the IP phone has a message waiting subscription with the Service Pro-
		vider, a Message Waiting Indicator (MWI) (LED or display icon) tells the user
		there is a message on the IP Phone. You can enable and disable MWI by set-
		ting this parameter to 0 (disable) or 1 (enable) in the configuration files or
		by checking the box for this field in the Aastra Web UI. Default is disabled.
		For more information, see Chapter 4, “Advanced SIP Settings (optional)” on
		page 4-69.
Explicit MWI Subscription Period	sip explicit mwi subscription period	The requested duration, in seconds, before the MWI subscription times
		out. The phone re-subscribes to MWI before the subscription period ends.
		For more information, see Chapter 4, “Advanced SIP Settings (optional)” on
		page 4-69.
N/A	sip missed call summary subscrip-	Enables or disables the Missed Call Summary Subscription feature.
	tion	This feature allows missed calls that have been redirected by the server, to
	(global)	be incremented in the missed calls indicator on the phone it was initially
		directed to. Default is disabled.
	sip lineN missed call summary sub-
	scription	For more information about this parameter, see Chapter 6, the section,
	(per-line)	“Missed Call Summary Subscription” on page 6-10.

41-001343-02 REV04 – 05.2014 3-38