Aastra Telecom 55I, 57I CT, 53I manual Advanced Operational Features, Feature Description

Configuring Advanced Operational Features

Advanced Operational Features

Advanced Operational Features

Description

This section provides the following information about advanced features of the IP phones:

Feature	Description
MAC Address/Line Number in REGISTER	Allows you to enable or disable the sending of the MAC
Messages	address and line number from the IP phone to the call
	server, in a REGISTER message.
SIP Message Sequence for Blind Transfer	Allows you to enable or disable the phone to use the Blind
	Transfer method available in software prior to release 1.4.
Update Caller ID During a Call	Allows you to enable or disable the updating of the Caller ID
	information during a call.
Boot Sequence Recovery Mode	Allows you to enable or disable Web recovery mode and set
	the maximum boot count on the IP phone.
Auto-discovery Using mDNS	The IP phones automatically perform an auto-discovery of all
	servers on a network using mDNS. When the IP phone
	discovers a TFTP server, it is automatically configured by
	that TFTP server.
Single Call Restriction (57i CT only)	Allows you to enable or disable a single call restriction
	between the 57i CT base unit and a call server.
Missed Call Summary Subscription	Allows missed calls that have been redirected by the server,
	to be incremented in the missed calls indicator on the phone
	it was initially directed to.
Blacklist Duration (Broadsoft Servers)	Allows you to specifies the length of time, in seconds, that a
	failed server remains on the server blacklist. The IP phone
	avoids sending a SIP message to a failed server (if another
	server is available) for this amount of time.
Whitelist Proxy	Allows you to configure the phone to either accept or reject
	call requests from a trusted proxy server.

Advanced Operational Features

41-001160-00, Release 2.1, Rev 04 6-3