User`s manual

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Scenario 20 : SIP VoIP Call : Register to SIP Proxy Server
Gateway 2 <----> Gateway 1 (Call PBX Extension number)
Call Method : Two-Stages-Dialing
Gateway#1
Gateway#2
801
609, 601
801
WAN
SIP Call (SIP Proxy Server Mode) with PBX: Call PBX Extension
Method 1: Two-Stage-Dialing
Extension 609
Extension 601
901
Register Number List
GW1: 801
GW2: 901,609
SIP Proxy Server