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1 Introduction > 1.4 Third-Generation 3G VoIP Networks - Pg. 28

Chapter 1 All approaches listed in the preceding subsections have intrinsic "pros" and "cons," and may, given further analysis, be potential avenues of deployment for an organization. 1H06 2H06 1H07 2H07 VoIP Trunking Only Approach Alpha PBX with IP Adjunct Extensions Hybrid TDM/IP Pure IP (Enterprise-wide) Deploy QoS/PoE 2H06 1H07 2H07 VoIP Trunking Only Approach Beta PBX with IP Adjunct Extensions Hybrid TDM/IP Pure IP (Enterprise-wide) Deploy QoS/PoE 1H07 2H07 VoIP Trunking Only Approach Gamma PBX with IP Adjunct Extensions Hybrid TDM/IP Pure IP (Enterprise-wide) Deploy QoS/PoE PBX with IP Adjunct Extensions 2H07 VoIP Trunking Only Approach Delta Hybrid TDM/IP Pure IP (Enterprise-wide)