This is a username provided by the SIP Server 
This is the ID for authentication 
This is a password provided by the SIP Server 
Server for registration, provided by the administrator 
When the main server is not available, this device can register to this 
secondary server. 
Address of the outbound proxy server. 
Secondary Outbound 
Proxy Server 
When the main outbound server is not available, this device can use 
this secondary outbound proxy server. 
Polling Interval Time 
Of Registration 
Polling interval time of registration, default is 32 s. 
Defines whether the STUN server is active or not 
Session Traversal Utilities for NAT (STUN) server address 
Bridge Line Appearance (BLA), also named Shared Line Appearance 
(SLA) With this BLA configuration, the 8001/8001G DeskPhone set 
monitors a shared line status(this feature highly depends on SIP 
server status) 
Subscription expiration time. 
Interval after which the IP phone automatically re-registers 
There are three options; UDP/TCP/TLS 
Select the ring type for this account.