Yealink SIP-T4X Administrator's Manual page 8

Administrator's Guide for SIP-T4X IP Phones
Language

Logo Customization

Anonymous Call

Action URL

Action URI

Audio Codecs

Major updates have occurred to the following sections:
Language

Auto Answer

Audio Codecs

Encrypting Configuration Files

This version is updated to incorporate T41P as one of the T4X device models. The
following section is new for this version:
Logo Customization

Major updates have occurred to the following sections:
SIP IP Phone Models

Configuring Transmission Methods of the Internet Port and PC Port

Language

Remote Phone Book

Server Redundancy

Audio Codecs

Transport Layer Security

Secure Real-Time Transport Protocol

This version is updated to incorporate T42G as one of the T4X device models. The
following section is new for this version:
SIP IP Phone Models

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