Check SIP User ID for Default is No. Check the incoming SIP User ID in Request URI. If they don’t match, the incoming INVITE call will be rejected. If this option is enabled, the device will not be able to make direct IP calls. Allow Incoming SIP Messages from SIP Proxy Only Default is No. Check the incoming SIP messages. If they don’t come from the SIP proxy, they will be rejected. If this option is enabled, the device will not be able to make direct IP calls. SIP T1 Timeout T1 is an estimate o

Caller A(HT70X) wants to bring third Caller C into conference: 1. A presses FLASH (on the analog phone, or Hook Flash for old model phones) to get a dial tone. 2. A dials C’s number then # (or wait for 4 seconds). 3. If C answers the call, then A presses FLASH to bring B, C in the conference. 4. If C does not answer the call, A can press FLASH back to talk to B. 5. If A presses FLASH during conference, C will be dropped out. 6. If A hangs up, the conference will be terminated for all three parti

5 CHANGE LOG ............................................................................................. 6 CHANGES FROM 1.0.1.6 USER MANUAL .......................................................................................... 6 WELCOME .................................................................................................. 7 SAFETY COMPLIANCES ...................................................................................................................... 7 WARRANTY .......

4 INSTALLATION............................................................................................................................................ 5 EQUIPMENT PACKAGING...............................................................................................................................5 CONNECTING YOUR ATA .............................................................................................................................5 FIGURE 1: CONNECTING THE HT–496.................

Table of Contents 1 WELCOME......................................................................................................... 3 2 INSTALLATION ................................................................................................. 4 3 WHAT IS INCLUDED IN THE PACKAGE ......................................................... 5 3.1 SAFETY COMPLIANCES .................................................................................... 5 4 PRODUCT OVERVIEW............................