Patton SmartNode SN4741/72JS72VSP/RJ11-21/R48 VoIP Gateway | 72 FXS ports for 72 VOIP calls

SKU: 4732 Category:



The SmartNode™ SN4741/72JS72VSP/RJ11-21/R48 VoIP Gateway provides 72 analog FXS (FXO coming soon) interfaces to connect phones, fax or PSTN trunk lines to your All-IP based Unified Communication system such as SIP Trunks, IP PBX`s, Hosted Solution, etc. The SN4741/72JS72VSP/RJ11-21/R48 is a member of the SN4740 product series.

Like every SmartNode, the SN4741/72JS72VSP/RJ11-21/R48 supports every industry-standard Codec to deliver toll-quality voice on every call. Utilizing Patton Cloud’s Call Quality Assessment and Monitoring functions, together with E-Mail or SMS notification, it ensures meeting Service Level Agreements at the customer premise with no effort. Which helps in preventing Call Quality related problems, and reduces time resolving them by utilizing the remote access functions of Patton Cloud.

VoIP-over-VPN voice encryption provides secure voice and data via IPsec** or OpenVPN** in addition to SIP/TLS** & SRTP**.

The advanced call-router functionality includes least-cost call routing with flexible dialed-number plan support. The SmartNode survivability suite provides SIP Trunk and PSTN fallback to ensure business continuity in case the IP network fails. In addition, the SmartNode delivers a smooth transition to All-IP with strong number portability support accepting incoming calls from the PSTN throughout the VoIP service provider's number porting process.

Preserve investments in legacy phone equipment while taking the next steps toward unified communications with the SN4741/72JS72VSP/RJ11-21/R48 VoIP Gateway. Providing 72 FXS (FXO coming soon) interfaces and two 10/100/1000 Ethernet ports, the SN4741/72JS72VSP/RJ11-21/R48 delivers a reliable, cost-effective solution for the Enterprise.

Additional information

Weight 2.00 lbs
Dimensions 5.00 × 5.00 × 5.00 in


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  • 72 FXS – 72 Analog ports. Long Reach FXS—10 km @ 3REN load. MWI, Caller-ID and AOC support. FXO is coming soon!
  • Message Waiting – Message Waiting Subscription & Notify, MWI – Line reversal, high voltage and FSK support.
  • Full VoIP protocol support – SIPv2, SIPv2 over TLS**, SIPv2 over IPv6, RTP security with SRTP**, T.38, fax and modem bypass, DTMF relay.
  • Easy Management & Provisioning – Patton Cloud orchestrated, HTTPS zero-touch provisioning (Mutual Authentication), SNMP, command line interface and TR-069 for automated mass provisioning for efficient deployments.
  • Call Quality Assessment & Monitoring – Powered by Patton Cloud; Call Quality monitoring ensures SLA is being met at the customer premise. CDR logging includes quality information, duration, Codec, etc. Accessible by Web and API (OSS/BSS integration).
  • eSBC Upgrade Option – Simply by purchasing a software license, the SmartNode becomes a full blown eSBC. This capability prepares your voice network for next-generation SIP services and security.
  • Optional Redundant Power – Available with fully redundant AC or DC Power
Capacity 72 simultaneous low bandwidth voice or HD calls with SRTP or T.38 fax calls (Upgradeable to eSBC max 200 sip calls)
SIP Signaling
  • SIPv2 over UDP/TCP or TLS**
  • SIP call transfer, redirect
  • Overlap dialing, PRACK, P-Header support
  • Multi instance, simultaneous support of multiple registrars and direct IP dialing)
  • DTMF in-band & out-of-band
  • B2BUA—eSBC capable**
Voice Processing
  • G.722
  • G.711m/A-law
  • G.723.1 (6.4 kbps)
  • G.729, 729a, 729ab (8 kbps)
  • G.726 (16, 24, 32, 40 Kbps)
  • AMR-NB (4.75, 5.15, 5.9, 6.7, 7.4, 7.95, 10.2, 12.2 kbps)
  • Fax relay T.38, bypass G.711
  • iLBC at 13.33 kbps (SIP-SIP only)
  • G.168-2004 echo cancellation (128 ms)
  • 72 simultaneous low-bandwidth voice or T.38 fax calls
  • HD calls with SRTP
  • Silence suppression and comfort noise
  • Adaptive and configurable dejitter buffer
  • Configurable RTP packet length
Call Switching & Services
  • 3 way and N way conferencing
  • Regular expression based call routing and number manipulation
  • Number blocking
  • Short-dialing
  • Digit collection, distribution and hunt groups
  • Transparent line extension
  • Fallback Routing: Soft fallback to alternative route(s)
FXS Connectivity
  • 2-wire Loopstart on RJ11-21 (Telco 50-pin)
  • MWI – high voltage, line reversal and FSK method
  • Localization—All tones programmable (dial, ringing, busy)
  • EuroPOTS (ETSI EG201188)
  • Programmable AC impedance, feeding, ring and onhook voltage
  • Peak Ring voltage: 87.7Vpk
  • Ring voltage: 62Vrms
  • Current Feed ILA: 26mA
  • Talk Battery Voltage: -20V
  • On-Hook voltage VOC: 51V
  • Caller-ID FSK and ITU V.23/Bell 202 generation
  • Long Reach FXS—10 km @ 3REN load
  • Secondary Surge Protection*
  • Two 10/100/1000Base-T Ethernet ports
  • USB port
  • Auto-MDIX
  • DHCP Client and Server
  • PPPoE Client (multi-session)
  • IP Multi-Netting, VLAN, Secondary IP
  • IPv4 and IPv6—Dual Stack
  • ICMP
  • Dynamic and static NAT and NAPT
  • Intelligent ACL
  • DNS, DynDNS
  • SNTP Client
Quality of Service, SLA Assurance
  • Patton Cloud based Call Quality Monitoring & Alerting**
  • Voice priority, DownStreamQoS™
  • High Availability & Redundancy**
  • Traffic Management, shaping policing
  • IEEE 802.1p, IEEE 802.1Q, 4096 VLANs (Tag insertion/deletion), TOS, DiffServ Labeling
  • Web/HTTPS, CLI and SSH Telnet access
  • Patton Cloud Orchestrated
  • Customizable WebWizard, Web-based GUI HTTP/HTTPS access, CLI Telnet/SSH
  • Secure Auto-Provisioning (Zero Touch) with built in root CA
  • Separate config domain (LAN side config and WAN side config)
  • TR-069 (CWMP-ACS), TFTP, HTTP, HTTPS configuration & firmware up- and download
  • Radius, TACACS+
  • SNMPv3 agent—MIB II and private MIB
  • Built-in diagnostic tools
Power 16–32 port:
Single power supply, Secondary optional for redundancy

  • 110–230 VAC via external power supply
  • 20–59 VDC internal power supply

Consumption: Coming soon

16–32 Ports Power Consumption

Consumption in watts 16 Port 24 Port 32 Port
Typical (20% off hook, 5% ringing) 29 31 33
Idle (USB full load) 18 18 18
All off hook 44 54 64
All ringing—staggered, 1 REN 33 39 43


  • Operating temperature: 32 to 104°F (0 to 40°C)
  • Operating humidity: up to 90%, non-condensing)
Safety & Compliance
  • EMC compliance: EN55022 and EN55024
  • Safety compliance: EN 60950
  • CE compliance
  • FCC Part 15 Class A
  • TBR21 (FXS)
  • RoHS
  • ITU-T K.21 protection (FXS ports)
Dimensions & Packaging 19-in. rack-mount chassis

  • 1U: 16–32 ports

Ordering Information


SN4741/72JS72VSP/RJ11-21/R48 SmartNode VoIP Gateway, 72 FXS on RJ11&3xRJ21-50pin, K.21 basic surge protection, 72 VoIP Calls, upgradeable to eSBC (max. 200 SIP calls), Optional SIP-TLS/SRTP, 2x Gig Ethernet, 1x USB, 1x Console, Redundant 20-59V DC power General Availability