Alvis-GW-2E1-L

An entry-level desktop gateway: an affordable and reliable 2×E1↔SIP junction without rack mounting. Ideal for the last mile and first deployments.

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