The SN4970 is a VoIP media gateway manufactured by Patton Electronics, designed to connect traditional telecom infrastructure (TDM/PSTN) with modern IP-based voice networks.
It enables enterprises and telecom operators to integrate legacy PBX systems with VoIP services, supporting seamless communication between ISDN, PSTN, and SIP-based networks.
The device is widely deployed in enterprise telephony, carrier interconnect, and migration projects, where existing T1/E1/PRI lines need to be converted into IP telephony. It supports up to 120 simultaneous VoIP calls depending on configuration.
Key Features
- Manufacturer: Patton Electronics
- Model: SN4970 (SmartNode Series)
- Product Type: VoIP Gateway / Media Gateway
- Function: TDM (T1/E1/PRI) to IP (VoIP/SIP) conversion
- Ports: 1 to 4 × T1/E1/PRI interfaces
- Ethernet: 1 × Gigabit Ethernet (10/100/1000)
- Capacity: 15 to 120 VoIP channels (model-dependent)
- Protocols: SIP, H.323, ISDN
- Deployment: Enterprise & carrier-grade telecom environments
Technical Specifications
Interfaces
- T1/E1/PRI Ports: Up to 4
- Ethernet Port: 1 × RJ-45 Gigabit
- Console: Serial management port
Voice & Signaling
- VoIP Protocols: SIPv2, H.323
- ISDN Support: DSS-1, NI-2, Q.SIG
- Codecs:
- G.711 (a-law / μ-law)
- G.729, G.723, G.726
- T.38 Fax relay
90 DAY'S
