ZyXEL P-2701RL User Guide - Page 16

Advanced Phone Configuration

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Chapter 3 Phone Use and Configuration 3.3 Advanced Phone Configuration Click VoIP > SIP to open the SIP Settings screen. This screen allows you to manage up to two SIP accounts. Figure 3 The SIP Settings Screen To have the ZyXEL Device add a "user=phone" parameter to the SIP URI before sending a SIP INVITE request, select the Enable option next to Set User Header To Phone. This parameter indicates the user part of the SIP URI (@) the ZyXEL Device is calling is a valid telephone number. If you need to send fax messages using T.38 and want to always use the same port number for both transmitted and received T.38 packets, select Use Original RTP Port. Otherwise, select Assign Port for Reinvite to have the ZyXEL Device choose a port randomly for T.38 after the re-invite process. Click Apply to save the changes you made in this screen. Select Active for the phone you want to configure, then click the Modify icon. The Phone SIP Settings screen opens, where you can set up and maintain your SIP account(s) in the ZyXEL Device. Your VoIP or Internet service provider should provide you with your account information. 16 P-27XX Series User's Guide

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Chapter 3 Phone Use and Configuration
P-27XX Series User’s Guide
16
3.3
Advanced Phone Configuration
Click
VoIP > SIP
to open the
SIP Settings
screen. This screen allows you to
manage up to two SIP accounts.
Figure 3
The SIP Settings Screen
To have the ZyXEL Device add a “user=phone” parameter to the SIP URI before
sending a SIP INVITE request, select the
Enable
option next to
Set User Header
To Phone
. This parameter indicates the user part of the SIP URI
(<user>@<sipserver>) the ZyXEL Device is calling is a valid telephone number.
If you need to send fax messages using T.38 and want to always use the same
port number for both transmitted and received T.38 packets, select
Use Original
RTP Port
. Otherwise, select
Assign Port for Reinvite
to have the ZyXEL Device
choose a port randomly for T.38 after the re-invite process.
Click
Apply
to save the changes you made in this screen.
Select
Active
for the phone you want to configure, then click the
Modify
icon. The
Phone
SIP Settings
screen opens, where you can set up and maintain your SIP
account(s) in the ZyXEL Device. Your VoIP or Internet service provider should
provide you with your account information.