Patton electronic SL4050/2 ユーザーズマニュアル

Authentication Expire Time
The time that the phone waits to connect to the SIP server after the user dialed a number. If still not con-
nected, the phone will disconnect and redial.

Outbound Proxy Domain Name/IP Address
Outbound proxy domain name or IP address.

Outbound Proxy Port Number
Outbound proxy port number.

Domain name or IP address.

Domain name or IP address.

This section should be configured by network administrators.

Session Timer
The time interval in which the phone periodically refresh SIP sessions by sending repeated INVITE requests. 
These INVITE requests allow the user agent or proxies to determine the status of the SIP session.

Media Port
Real-time Transport Protocol port number. Provides end-to-end transfer of data with real-time audio.

Prack
Prack ensures that media information is exchanged and that network checks before connecting the call. Select 
Enable for a more reliable connection.

•

Select None to disable SIP session timer support.

•

Select UAC to initiate SIP request.

•

Select UAS to receive SIP request and then return a response.

Session Timer Method
Select SIP request method. Default method is Invite.

UDP/TCP
Select SIP signal transmission method. Default method is UDP.