| Specification | 
                                    
                                                                                     Type: Pabx;Port Number: 16~48;
 Structure of Port: Modular PBX;
 Information Transmission Method: Simulation;
 Connection Mode: Time Connection;
 Application: Universal Type;
 Brand: Excelltel or OEM;
 Signal Process Mode: Program Control;
 Expandable: Yes;
 PC Billing Software Management: Yes;
 Caller ID: Yes;
 Backup Battery: Support;
 External Music Input on Holding: Yes;
 Door Phone: Yes;
 Lcr: Yes;
 Power Failure Transfer: Yes;
 Cabinet: Plastic Case;
 
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                                                                                     Type: Telephone Channel Equipment;Port Number: >128;
 Transmission Mode: Full Duplex/ Half Duplex;
 Transmission Rate: 1000mbps;
 Structure of Port: Modular PBX;
 Information Transmission Method: Digital;
 Connection Mode: Time Connection;
 Scope of Cover: WAN PBX;
 Brand: Hwd;
 Single Set of User Capacity: 800~1, 000 (Max. 1,000 IP Users/Simulated Users);
 Terminal Type: Analog Phones, IP Phones, Video Phones, Soft Termi;
 Trunk Interfaces: Maximum 36CH FXO, 4e1/T1, 4bri;
 Signaling Protocol: Pri,Qsig,Ss7,R2,SIP,Bri;
 The Number of Meeting Channels: Maximum 120 Participants, up to 60 Venues, and up;
 
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                                                                                     Single-User Capacity: 3500~20000;Power Consumption: 550W;
 Weight: 10kg;
 Trunk Port: Max 60CH FXO, 24e1/T1, 20bri;
 The Number of Meeting Channels: Maximum 2000 Participants, up to 660 Venues, and U;
 
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                                                                                     Terminal Typ: Analog Phone, IP Phone, Video Phone, Soft Terminal;Single User Capacity: 1,000 (up to 1,000 IP Users/192 Local Simulated Us;
 Trunk Interface: Maximum 72 Channels of FXO, Maximum 28e1/T1 Interf;
 Signaling Protocol: Pri, Qsig, Ss7, R2, SIP, Bri;
 Codec Format: G.711A/U, G.729A/B/Ab, Ilbc, G.722/G.722.1/G.722.2;
 Number of Conference Channels: a Maximum of 360 Participants, a Maximum of 120 Ve;
 Voicemail: Maximum Support for 30 Concurrent Channels of Buil;
 Power Consumption: 220W (Full Configuration);
 Weight: 10kg;
 
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                                                                                     Terminal Typ: Analog Phone, IP Phone, Video Phone, Soft Terminal;Single User Capacity: 0~1000 (up to 1000 IP Users/192 Local Simulated Us;
 Trunk Interface: Maximum 72 Channels of FXO, Maximum 28e1/T1 Interf;
 Signaling Protocol: Pri, Qsig, Ss7, R2, SIP, Bri;
 Codec Format: G.711A/U, G.729A/B/Ab, Ilbc, G.722/G.722.1/G.722.2;
 Number of Conference Channels: a Maximum of 360 Participants, a Maximum of 120 Ve;
 Voicemail: Maximum Support for 30 Concurrent Channels of Buil;
 Power Consumption: 220W (Full Configuration);
 Weight: 10kg;
 
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