IP PBX Phone System:With the help of our professionals, we are engaged in offering our clients an extensive series of IP PBX Phone System. The offered phone system is highly demanded in the market for calls transmission by using internet protocol. The offered system provides trouble-free IP telephony service with excellent communication. Extremely suitable for both, small and large business enterprises, we offer this IP PBX Phone System to the clients in diverse technical specifications at very reasonable rates. Features:MultimediaExcellent CommunicationLight WeightElevate DurabilityExcellent Performance Long Service LifeUnique DesignEasy InstallationTrouble Free Functionality Products Specification: Network ACOM508G-32: GSMACOM508W-32: GSM/WCDMA ACOM508C-32: CDMA Number of Channels 8 channels 32 SIM cards and 4 SIM cards per channel rotation using Frequency ACOM508G-32: 850/900/1800/1900MHzACOM508W-32: 850/900/1800/1900/2100MHz ACOM508C-32: 450Mhz or 800Mhz or 800/1900MHz optional Call Control Protocol SIP Voice CODECs G.729A, G.723.1, G.711 a/ulaw Network Protocols IPv4, TCP, UDP, PPPoE, DHCP, DNS, NAT, Telnet, HTTP, FTP, TFTP Configuration and Management Web-based GUIConsole, telnet command lineCentralized network management Firmware Update Local file, FTP, TFTP and HTTP Message Features SMS batch receiving/sending, AT command compatible Telephony Features Hot-line callDial planSpeed dialPhone bookCDRWhite list Telephony Signaling DTMF tone dectection/generationDTMF relay: in-band, RFC 2833 and SIP infoCall forward: unconditional, no answer and busyN-way conferencingMobile Number Portability Voice Quality Echo cancellationSilence suppression(voice activity detection, comfortable oise generation)Adaptive jitter buffer Number of Ports 1 WAN 10/100Base-T ethernet(RJ-45 connector)1 LAN 10/100Base-T ethernet(RJ-45 connector)1 console(RS-11 connector) LEDs 1 power and 4groups of signal strength and running indicator Power Supply 100-240VAC, 50 - 60 Hz Dimensions Rack mountable 1U chassis(compatible with 19" Rack)Width: 482mmHeight: 44mmDepth: 210mm Weight 2.5kg Operation Environment Operating temperature: 0 - 50COperating humidity: 10 90%