IP Yeastar MyPBX Pro

Users: 100 
Concurrent Calls: 22 
Voicemail: 4000min
Interface:
    Up to 16 Analog Ports (FXO/FXS)
    Up to 8 GSM Ports(Quad-Band GSM/GPRS850/900/1800/1900MHz)
    Up to 8 UMTS Ports(UMTS 900/2100MHz or 850/2100MHZ or  850/1900MHZ)
    Up to 8 BRI Ports
Flash: 512 MB Onboard Flash
RAM: 128 MB Onboard RAM
LAN: 1 (10/100Mbps) 
WAN: 1 (10/100Mbps)
Size: 440x175x45 mm (1U Rack-Mount) 
Weight: 2500g
Power Supply: 100-240V~  50/60Hz 1.5A MAX 
Maximum Power: 60W
SIP Protocol: SIP(RFC3261), IAX2 
Transport Protocol: UDP,TCP,TLS,SRTP
Codec: G.711, GSM, SPEEX, G.722, G.726, ADPCM, G.729 A, 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

II. Features

Attend Transfer

Blind Transfer

BLF Support

Blacklist

Callback

CDR (Call Detail Records)

Call Forward

Call Parking

Call Pickup

Call Routing

Call Transfer

Call Waiting

Caller ID

Conference

Define Office Time

DDNS

Dial by Name

DISA (Direct Inward System Access)

DIDs

Distinctive Ringtone

DND (Do Not Disturb)

FAX (T.38)

Firewall

Follow Me

IVR (Interactive Voice Response)

Intercom/Zone Intercom

Mobility Extension

Multi-language Prompt

Music On Hold

Music On Transfer

One touch record

OpenVPN

Phone Provisioning

PIN User(PIN Code Control)

Paging/Zone Paging

PPPoE

Queue

Ring Group

Route by Caller ID

Skype Integration (Skype Connect)

SMS to Mail/Mail to SMS

Speed Dial

Static Route

Three Way Calling

Voicemail

Voicemail to Email

Voicemail Forwarding

Web Based Control Panel

*TR069

Spy functions (Normal Spy, Whisper Spy, Barge Spy)

Note: the features with asterisk (*) will be supported in next version.