- Convert Analog or Digital to IP—Convert your Analog (POTS) or Digital (ISDN) circuits to IP for toll quality VoIP services
- Extended Temperature -40 to 85°C—Operates in environments that do not have heating or cooling options
- Firewall, NAT, DHCP, PPPoE —Connect to any broadband or access provider, serve the whole network, and secure your data. User configurable IP services ensure every host is connected to the LAN
- IPSEC VPN, Encryption, & VLAN—Connect your Analog or Digital circuit for IP access and secure your voice with optional IPSEC with DES/3DES or AES encryption. VLAN tagging/stripping allows advanced networking today
- NEMA 4 Case—Protection against elements including dirt, rain, sleet, snow, dust, and the external formation of ice on the enclosure
 The EnviroNET™ Voice-over-IP Gateways, Model ET4500 series, reaches into rugged environments with IP-telephone circuit conversion for toll quality VoIP services anywhere you want. The ET4500 series utilizes advanced adaptive voice/data traffic management and shaping with the addition of Patton’s patent-pending DownStreamQoS™ to offer unparalleled performance of voice quality services. The ET4500 series use standard CODECs such as G.723 and G.729 as well as industry standard SIP, H.323 and MGCP/IUA to ensure seamless connections and compatibility for all voice services.
Patton’s EnviroNET™ Voice-over-IP Gateways are housed in a NEMA 4 enclosure and operate in extreme temperatures, ranging from –40 to 85°C. EnviroNET Voice-over-IP Gateways are the ideal solution for providing VoIP services to locations where harsh environmental conditions such as heating, cooling, dust, and moisture cannot be controlled.
Typical applications for Patton’s EnviroNET™ Voice-Over-IP Gatweays include providing VoIP capabilities to public and private outdoor phones, industrial automation, and curbside services.
 Extending Patton’s EnviroNET Voice-over-IP Gateway routers into exposed environments for seamless access between remote packet-voice and local PSTN telephony. Using ToIP call switching, distinctive ring, and Caller-ID a single handset can now access the right service at any time. With Patton’s ClearConnect™ fail-over protection a phone call will be completed. Network health monitoring and ToIP switching ensures a clear call even if the IP network is down. Patton’s EnviroNET protective enclosures give service providers unlimited installation locations.
Model # |
Temperature |
Case Rating |
Voice Connectivity |
Ethernet Connectivity |
ET452X/JS/UI |
-40 to 85°C |
NEMA 4 |
2–6 FXS |
2 x 10/100 |
EH452X/JS/UI |
-0 to 50 °C |
NEMA 4 |
2–6 FXS |
2 x 10/100 |
ET452X/JO/UI |
-40 to 85°C |
NEMA 4 |
2–4 FXO |
2 x 10/100 |
EH452X/JO/UI |
-0 to 50 °C |
NEMA 4 |
2–4 FXO |
2 x 10/100 |
ET4524/2JS2JO/UI |
-40 to 85°C |
NEMA 4 |
2 FXS/ 2 FXO |
2 x 10/100 |
EH4524/2JS2JO/UI |
-0 to 50 °C |
NEMA 4 |
2 FXS/ 2 FXO |
2 x 10/100 |
ET4526/4JS2JO/UI |
-40 to 85°C |
NEMA 4 |
4 FXS/ 2 FXO |
2 x 10/100 |
EH4526/4JS2JO/UI |
-0 to 50 °C |
NEMA 4 |
4 FXS/ 2 FXO |
2 x 10/100 |
ET4528/4JS4JO/UI |
-40 to 85°C |
NEMA 4 |
4 FXS/ 4 FXO |
2 x 10/100 |
EH4528/4JS4JO/UI |
-0 to 50 °C |
NEMA 4 |
4 FXS/ 4 FXO |
2 x 10/100 |
ET4552/2BIS/EUI |
-40 to 85°C |
NEMA 4 |
2 ISDN (BRI) |
1 x 10/100; 4 x 10/100 Switch |
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