MyPBX U200 (IP PBX for Your Business)      MyPBX U200 is a workhorse designed for companies requiring up to 50 concurrent calls and 200 users. It supports PSTN, ISDN BRI lines, GSM/UMTS networks and VoIP. Also, it is equipped with an audio input port and an audio output port. MyPBX U200 is truly unrivalled for features and value. Support 200 Users Support 50 Concurrent Calls Up to 16 Analog Ports Up to 8 GSM/UMTS Ports Up to 8 BRI Ports One RS232 Port Support Call Recording Features Attend Transfer Blind Transfer BLF Support Blacklist CDR (Call Detail Records) Call Forward Call Parking Call Pickup Call Routing Call Transfer Call Waiting Caller ID Conference Define Office Time Dial by Name DISA (Direct Inward System Access) DIDs Distinctive Ringtone DND (Do Not Disturb) Firewall Follow Me IVR (Interactive Voice Response) Intercom/Zone Intercom Multi-language Prompt Music On Hold Music On Transfer MyTwins (Double System) One touch record Phone Provisioning PIN User (PIN Code Control) Paging/Zone Paging Queue Ring Group  Route by Caller ID Skype Integration (Skype Connect) Speed Dial Three Way Calling Voicemail Voicemail to Email Voicemail Forwarding Web Based Control Panel Spy functions (Normal Spy, Whisper Spy, Barge Spy) Specification Users: 200 Concurrent Calls(Max): 50 Voicemail: 3000min (upgradable) Auto-Recording(Add-on): Support Interface: Up to 16 Analog Ports (FXO/FXS) Up to 8 GSM Ports (850/900/1800/1900MHz) Up to 8 UMTS Ports (900/2100 or 850/2100MHz) Up to 8 BRI Ports One RS232 Port LAN: 1 (10/100Mbps) WAN: 1 (10/100Mbps) USB: 1 (USB2.0) Audio In/Out: Supported Size: 340x210x44 mm Weight: 2.1kg Power Supply: AC100-240V 50/60Hz (15A MAX) Protocol: SIP(RFC3261), IAX2 Transport Protocol: UDP,TCP,TLS, SRTP Codec: G711, GSM, SPEEX, G722, G726, G729A, ADPCM, H261, H263, H263p, H264, MPEG4. DTMF: Inband, RFC2833, SIP INFO Echo Cancellation: Supported LED: Red for FXO/GSM/UMTS, Orange for BRI, Green for FXS. Network: Static IP, PPPoE, DHCP, Firewall, VLAN, DDNS, QoS, DHCP Server, OpenVPN Multiple Languages Support: Chinese, Dutch, English, French, German, Hebrew, Korean, Italian, Polish, Portuguese, Romanian, Russian, Spanish, Thai, Turkish Internal Construction