rock 4 FXS SIP VoIP Gateway,analog VoIP adapter.Elastix compatible,Mitel certificated ATA 4 analog Telephone sip ip

This product link is the HX404E 4 FXS gateway,we also have other fxs/fxo Assembly gateway,if you need,please tell me.We have bellow model:
HX4E features the ability to connect standard telephones and fax machines to IP-based data networks with the additional benefit of an integrated connection for legacy telephone network.
Feature Highlights
2-4 Analoge Ports
4 Concurrent Calls
PSTN Fail Over
Powerful Routing Function
Call Log Analyze
Specification
SIP(RFC3261) UDP, TCP for Microsoft Lync
IMS
Network Telnet, SSH, HTTP, DHCP Client, PPPoE Client, Radius, DNS
Media Processing
Caller ID Bellcore Type 1&2, ETSI, BT, NTT, and DTMF-based CID
Codes G.711a/mu, G.729A
DTMF Transparent transmission, RFC2833, SIP-INFO, Hook-flash events
Fax over IP T.38 compliant Group 3 Fax Relay up to 33.6kbps and auto-switch to
T.38 from G.711 Fax pass-through
Fax data pump V.17, V.21, V.27ter, V.29, V.34 for T.38 fax relay
Support Smart Fax over IP (SFoIP) to make fax event more reliable
Disconnect methods Busy tone, Polarity reversal/wink,Loop current
Echo cancellation
User-defined ports SIP, HTTP port to access the Web GUI, RTP
Whitelist Whitelist of Web GUI and Telnet, IP address filtering of SIP
Encryption scheme Encryption on SIP signaling or/and media streams
Ping blocking/unblocking
Features
QoS DiffServ, TOS, 802.1P/Q VLAN tagging
High Availability
Redundancy Primary-Standby, Active-Standby, Load balancing
Failover PSTN failover on power or network failure
Remote Management
Device management TR069, SNMP
Auto provision TFTP, FTP, HTTP, DHCP option 66
Call transfer Blind transfer, Consultative transfer
Call forward Call forward all, Call forward no answer, Call forward busy
Call control Routing based on the caller or callee number, Digitmap, 3-way calling,
Speed dialing, Do not disturb, Forking, Color ringback tone, Hunt group,
Ring cadence, Message Waiting Indicator
Log management Logs with 8 levels, Syslog
Packet capturing Ethereal capturing, Port capturing
Configuration Configuration file import/export, Resetting to the factory default
Status and statistic Call status and history, device state monitoring and statistics collection
Version Firmware upgrade via Web GUI
Hardware
CPU 700MHz
RAM 64MB
FLASH 16MB
Dimensions(H×W×D ) 1.18 × 5.91 × 4.29 in. (30 × 150 × 109 mm)
Weight (net) 0.66 lb (0.3 kg) (Max.)
Power 12V/1.5A
Mounting mechanism Desktop
Operating Temperature: 32 to 104°F (0 to 40°C), Humidity: 10 to 90% RH (non-condensing)
Storage Temperature: -40 to 158°F (-40 to 70°C), Humidity: 5 to 90% RH (non-condensing)
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