Patton SmartNode SN4916/JO/R48 Analog VoIP Gateway | 16 FXO ports for up to 16 phone or fax calls

SKU: 4395 Category:





The SmartNode  SN4916/JO/R48 model of IpChannel Bank is the perfect business solution for applications requiring 16 concurrent analog voice/fax calls. The IpChannel Bank transforms any PBX system, analog call-center application, or ISP MDU service into a state-of-the-art packet-voice system without requiring costly equipment replacement or upgrades. The SN4916/JO/R48 is a member of the SN4900 product series. 

There are several models in the SN4900 Series – ranging from 12 to 32 FXO ports. Also available are different WAN interface options: V.35, X.21, T1, E1, ADSL, G.SHDSL.

The SN4900 Series supports key industry-standard VoIP signaling protocols such as SIP, H.323, and T.38 Fax Relay–plus fax-bypass and modem-bypass. This ensures interoperability with the leading soft switches and VoIP services.

Built-in Quality of Service (QoS) features include voice prioritization and traffic management via configurable service-policy profiles. Patton’s advanced DownStreamQoS ensures clear, uninterrupted voice–even over best-effort networks such as the Internet. Packet classification using 802.1p, TOS, and DiffServ makes integration with existing managed QoS networks easy.

Create custom security profiles for a comprehensive security environment. IPSec in the SN4900 Series delivers data integrity, authentication, anti-replay and data confidentiality. Firewall capabilities include Access Control Lists (ACLs), IP-address and port filtering, protection against Denial of Service (DoS) attacks, and use of second Ethernet port as DMZ.

Offering easy setup, reliable operation, and third-party interoperability on a proven platform, the SN4900 Series IpChannel Bank sits at the core of cost-effective business solutions. The investment protection you need for the future is here today.




Protect your investment—integrate analog equipment

Legacy is not bad! While VoIP offers distinct advantages in almost every aspect of communications, in many cases it is appropriate to integrate legacy equipment into a VoIP system rather than replacing it. The SN4900 Series is the enabler that protects your investment in analog equipment. It enables enterprises to extend multiple analog lines from a PBX to a remote location wich existing cabling or phones, taking advantage of a single IP link to transport up to 32 voice calls. The remote location can be a building around the block as well as a partner in another continent.






For call centers, the SN4900 is the ideal, reliable solution to integrate legacy work desks and cabling into next-generation, VoIP based call center software.

Additional information

Weight 2.00 lbs
Dimensions 5.00 × 5.00 × 5.00 in


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  • 16 FXO ports—Simultaneous voice or fax calls on all ports. Advanced local call switching.
  • Full SIP and T.38 support—Supports the complete range of industry standard VoIP: SIP, H.323, T.38 fax, fax and modem bypass, DTMF relay. Codecs G.729, G.723 etc.
  • Secure Toll-Quality VoIP—DownStreamQoS and Voice-over-VPN with adaptive traffic management and shaping for maximum voice quality and secure voice communication.
  • Complete Access Routing—Two 10/100 Ethernet ports with auto MDI-X. Access router with NAT, Firewall, PPPoE, DHCP, DynDNS, multiple VLANs & VPN with IPSec*
  • Optional Integrated WAN uplink—Choose from V.35, X.21, T1/E1, ADSL or G.SHDSL data interfaces in addition to the two Ethernet ports.
  • Outstanding Interoperability—Interoperable for voice and T.38 fax with leading SIP service providers, soft-switch vendors and Asterisk™ IP-PBX



16 simultaneous VoIP calls

Voice Signaling
  • SIPv2 H.323v4 (simultaneously with B2BUA capability)
  • SIP call transfer, redirect
  • DTMF in-band & out-of-band
  • All tones programmable (dial, ringing, busy)
Voice Processing
  • CODEC G.711 a-law/mu-law, G.723, G.729ab
  • G.726, G.727. T.38 fax relay (9.6 k, 14.4 k)
  • G.711 transparent fax and bypass
Call Switching and Services
  • Regular expression based call routing and number manipulation
  • Number blocking
  • Short-dialing
  • Digit collection, distribution and hunt groups
  • Transparent line extension
FXO Connectivity
  • 2-wire Loopstart on 50pin 
  • Programmable impedance, ring detection, tone detection, disconnect supervision
  • Caller ID detection
Data Services
  • Two 10/100 Ethernet ports
  • Complete IP access router
  • DHCP Client & server
  • Packet fragmentation
  • Static firewall, NAT, NAPT RFC 1631 access control lists
  • DMZ port
Quality of Service
  • Voice priority
  • DownStreamQoS
  • Traffic management, shaping and policing
  • IEEE 802.1p, TOS, DiffServ labeling
  • IEEE 802.1Q, VLAN tag insertion/deletion 4,096
Optional WAN interfaces
  • X.21/V.35 Frame Relay (8 PVCs); RFC1490, FRF.12 fragmentation; LMI, Q.933D, ANSI 617D, Gang of Four; PPP, PAP, CHAP, LCP, IPCP)
  • T1/E1 (ITU-T G.703, ANSI T1.403; & AMI, B8ZS, HDB3)
  • ADSL2+ (Annex A, B, I, J, I, M, U-R2)
  • G.SHDSL (G.991.2, Annex A, B, F, G, Up to 5.7Mbps, 8 PVCs, QoS)
  • Web/HTTP, CLI with local console and remote Telnet access
  • TFTP configuration & firmware loading
  • SNMP MIB II and product MIB
  • Secure auto-provisioning for both firmware and unit/subscriber configuration
  • Built-in diagnostic tools (trace, debug, call generator)
  • CPU Motorola MPC875 @ 133 MHz
  • Memory 32MB SDRAM/8MB Flash
  • 100 240 VAC (50/60 Hz)
  • Power dissipation: > 22W 
Operating Environment
  • Operating temperature: 32 – 122F (0 – 50C)
  • Operating humidity: Up to 90% (non condensing)
  • EMC compliance: EN55022 and EN55024
  • Safety compliance: EN 50950
  • CE compliance
  • FCC Part 15 Class A
  • RoHS

Ordering Information

# Model # Description Availability
  SN4916/JO/R48 SmartNode IpChannelBank 16 FXO VoIP GW-Router, 2×10/100bTX, Redundant 48VDC Power Special Order