Aastra Telecom 41-001343-02 User Manual

41-001343-02 REV04 – 05.2014

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

 

The IP Phones support the Technical Report (TR) 069 Protocol, a Protocol that provides the 
communication between Customer-Premises Equipment (CPE) (like the IP Phones) and 
Auto Configuration Servers (ACS) over DSL/broadband connections.

Allows you to enable or disable the sending of the MAC address and line number from the 
IP phone to the call server, in a REGISTER message.

Allows you to enable or disable the phone to use the Blind Transfer method available in 
software prior to release 1.4.

Allows you to enable or disable the updating of the Caller ID information during a call.

Allows you to enable or disable Web recovery mode and set the maximum boot count on 
the IP phone.

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.

Allows you to enable or disable a single call restriction between the 6757i CT base unit and 
a call server.

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. 

Allows you to enable or disable a specific line on the phone with the BroadSoft’s server-side 
DND, CFWD, or ACD features.

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.

Allows you to configure the phone to either accept or reject call requests from a trusted 
proxy server.

Allows you to enable or disable the use of Persistent Transport Layer Security (TLS). 

Persistent TLS sets up the connection to the server once and re-uses that connection for all 
calls from the phone. The setup connection for Persistent TLS is established during the reg-
istration of the phone. If the phones are set to use Persistent TLS, and a call is made from the 
phone, this call and all subsequent calls use the same authenticated connection. This sig-
nificantly reduces the delay time when placing a call.

Allows you to enable or disable the 802.1x Protocol support on the IP Phones. 

Allows you to enable or disable the phone to use port 5060 to send SIP UDP messages. 

Allows you to enable or disable the phone to use port 5061 to send SIP TLS messages. 

Allows you to enable or disable the addition of the User-Agent and Server SIP headers in 
the SIP stack.

The IP phones provide GRUU support using draft-ietf-sip-gruu-15. A sip.instance is added 
to all non-GRUU contacts.

IP Phones support Sylantro Server features, like mandatory and optional billing codes that 
require the application server to notify the phone to collect more digits before completing 
the call. The IP phone is able to collect digits in two stages to support the billing code fea-
ture.

Allows you to specify the Domain Name Service (DNS) query method to use when the 
phone performs a DNS lookup.

Allows you to configure the phone to ignore CSeq number errors on all SIP dialogs on the 
phone.