IPitomy IP550 User Manual Ver.1 User Manual

Page 38

IPitomy Confidential 33

Chapter 6

SIP

SIP-

-Related

Related Settings

Settings

This Chapter explains when and how to use the IP Phone's "VOIP" feature.

Global SIP Screen

The page allows you to set up SIP parameters that apply to all four lines.

Advanced SIP Settings

Explicit MWI Subscrip-
tion

Enable/Disable the subscription of message waiting.

Explicit MWI Subscrip-
tion Period

Specify the period of re-subscribe for the message waiting.

Session Timer

The session timer defined in "draft-sip-session-timer"

T1 Timer

The T1 timer defined in RFC 3261

T2 Timer

The T2 timer defined in RFC 3261

Transaction Timer

The T4 timer defined in RFC 3261

Transport Protocol

UDP or TCP can be selected, UDP recommended.

Registration Failed
Retry Timer

The timer to retry registration when several tries have failed