Alvis-GW-2E1-R1

A full-featured 2×E1 rackmount gateway (19″ 1U): connect SIP in-line on an existing E1 stream, 5/24/48 V DC and 220 V AC power options, redundant power supplies.

Where it is used

• Connecting PSTN E1 streams to new IP-PBXs, call-centers, cloud and virtual systems
• Connecting existing PBXs (Panasonic TDA/TDE, LG LDK, Siemens HiPath, Avaya) to SIP operators
• Joining offices and branches into a single SIP numbering plan
• Call recording in the E1 stream and CRM / call-center integration
• Stream protection and use within the Antifraud system

Capabilities

• Up to 30 SIP↔E1 and 30 E1↔E1 connections per unit
• RtpBridge core with HDLC/PRI hardware acceleration, ≈ 5 W (ARM/DSP)
• Hardware LEC echo canceller (G.168+ / NEC, 128 ms) and timeslot cross-connect
• In-line stream operation; each port as ISDN PRI NET (network) or CPE (user)
• Codecs G.729, G.723.1, GSM-FR, AMR-NB, T.38 fax
• Hardware E1 frequency meter with daily logging, SNMP monitoring of L1/L2/L3 alarms