L201 -1 port  software-selectable T1/E1/PRI interface, Support up to 30 concurrent calls

L202 -2 port  software-selectable T1/E1/PRI interface, Support up to 60 concurrent calls

L204 -4 port  software-selectable T1/E1/PRI interface, Support up to 120 concurrent calls

Specifications

Proolin DGW-L20X T1/E1 Gateway is an open source asterisk-based VoIP Gateway solution for operators and call centers. It is a converged media gateway product. This kind of gateway connects traditional telephone system to IP networks and integrates VoIP PBX with the ISDN seamlessly. With friendly GUI, users may easily setup their customized Gateway. Also secondary development can be completed through AMI (Asterisk Management Interface).

The DGW-L20X T1/E1 Gateway supports 1/2/4 software-selectable T1/E1/PRI interface and supports up to 120 concurrent calls.

Target Applications

o   Connect legacy PBX systems to low-cost VoIP services

o   Connect legacy PBX systems to remote sites over private VoIP links

o   Connect IP PBX systems to legacy TDM services

o   Phased transition from legacy PBX to IP PBX

o   Connect virtualized systems to legacy TDM services

o   Transcoding by connecting systems using varying codecs

o   Lync connectivity to SIP or legacy TDM providers and SIP or Legacy PBX

Technical Specifications

o   1/2/4 T1/E1 RJ45

o   2 10/100/1000Mbps Ethernet ports

o   2 USB 2.0 ports 

o   1 VGA port

o   Maximum Power Consumption: 18W

o   Power supply specification: 12V/1A

o   Operation humidity: 10%~90% non-condensing

o   Operating temperature: 0℃~70℃

o   Storage temperature: -40℃~85℃

Features

System Features

o   Available in 1/2/4 port T1/E1, 30/60/120 energy efficiency concurrent processing

o   Signalling: PRI/R2/SS7

o   Support up to 24 countries’ standard R2 signalling

o   Support new R2 variant

o   Simple and convenient configuration via Web GUI

o   Codecs support: G.711A, G.711U, G.729A, G.723.1, G.722, GSM

o   Support protocols：SIP、IAX、TCP、UDP、RTP、SSH、HTTP、HTTPS

o   Support NTP time synchronization and client time synchronization

o   Support SSH access for background management, Asterisk CLI command operation

o   Open API interface (AMI)

o   Support ports group management

o   Support for custom dialplans

o   Firmware update by HTTP

o   Support call statistics

o   Support TR069

o   Support SNMP

o   Support IAX Trunk and Encryption Transmission

o   Support auto provision

o   Support channel status show dynamically 

o   Support backup/upload configuration file

o   Multiple detailed log output 

o   Support Chinese language

o   Automatically reboot 

o   Good compatibility, support Asterisk, Elastix, Freeswitch and Small and medium IPPBX platform 

o   Available for OEM

o   3-month “No Question Asked” Return Policy, and Two-year Warranty

SIP Features

o   Support add, modify & delete SIP Accounts

o   SIP registration with Domain

o   Support multiple SIP registrations: Anonymous, Endpoint registers with this gateway, This gateway registers with the endpoint

o   SIP accounts can be registered to multiple servers

o   Combine different SIP Trunks into group

o   SIP(RFC3261) compliance

o   DTMF: RFC2833, SIP INFO, INBAND

o   Support T.38 /Pass-through Fax

Routing

o   Flexible routing settings

o   Support 512 routing

o   Support caller/callee manipulation and filtering

o   Trunk group support, Trunk priority management

o   Support add, modify & delete routing

o   E1/T1 port grouping

o   Support Failover

Network Features

o   Network type: Static IP and DHCP

o   IPv4, UDP/TCP, DHCP, TFTP, SCP

o   HTTP/HTTPS/SSH

o   Support DDNS

o   Support ping & traceroute command on the web

o   Support network capture on the web