Aastra Telecom C53I User Guide

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Administrator Level Options
3-16
41-001160-00, Rev 01  Release 2.0  
IP Phone Administrator Guide
Administrator Options
Password
Password used to register the IP phone with the SIP proxyValid values are up 
to 20 alphanumeric characters. Passwords are encrypted and display as 
asterisks when entering. Configurable on a global and per-line basis.
BLA Number
(not configurable via IP phone UI) Phone number that you assign to BLA 
lines that is shared across all phones (global configuration) or shared on a 
per-line basis (per-line configuration). For more information about BLA, see 
Chapter 5, the section, 
Line Mode
(Sip Mode in configuration files. Not configurable in IP phone UI). The 
mode-type that you assign to the IP phone on a global or per-line basis. Valid 
values are Generic (0), BroadSoft SCA (1), Nortel (2), or BLA (3). Default is 
Generic (0).
Basic SIP Network Settings
Proxy Server
(Proxy IP in the configuration files). IP address of the SIP proxy server. Up to 
64 alphanumeric characters. Configurable on a global and per-line basis.
Proxy Port
SIP proxy server’s port number. Default is 0. Configurable on a global and 
per-line basis.
Backup Proxy Server
The IP address of the backup SIP proxy server for which the IP phone uses 
when the primary SIP proxy is unavailable.
Backup Proxy Port
The backup proxy’s port number.
Outbound Proxy Server
Address of the outbound proxy server. All SIP messages originating from the 
phone are sent to this server.  For example, if you have a Session Border 
Controller in your network, then you would normally set its address here. 
Default is 0.0.0.0. Configurable on a global and per-line basis.