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Patton Smartnode 4981 Series VoIP Gateway Router

  • Patton SN4981 Patton SN4981
Smartnode Gateways are Build to Order. Please allow 3-5 day lead time.
Product Details
1 Year

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Or call one of our VoIP Experts at (800) 398-8647 or via email at

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From: $1,744.99

To: $9,054.98

As Configured: $0.00

As Configured: $0.00

Solution Overview

Patton Smartnode 4981 Series VoIP Gateway Router

Patton SN4981 T1/E1/PRI VoIP Gateway-Router

The Patton Smartnode 4981 series is a Patton digital gateway offering VoIP calls via T1, E1, or PRI with integrated IP router capability. The SN4981 offers a variety of pre-built port configurations to meet every need. The SN4981 improves upon the base model SN4980 with the addition of a high-precision clock for ISDN and DECT environemnts. In addition, the SN4981 ships with IPv6 upgradeable hardware so you can future proof your investment. Regardless of which configuration you choose, the SN4981 series VoIP gateway comes standard with 2 10/100/1000 Ethernet ports, external power supply (Except for the SN4981/4E30V120R/UI) , and 1 or 4 T1/E1/PRI ports.

Patton SN4981 Series Gateway-Router Overview

Like every SmartNode™, the SN4981 supports every industry-standard codecs to deliver toll-quality voice on every call. The Unified Communications Agent™ (UCA) provides any-to-any multi-path switching (simultaneous SIP, H.323, ISDN, and POTS calls with routing and conversion between TDM/PSTN and IP/Ethernet networks—plus T.38 and SuperG3 FAX). VoIP-over-VPN with voice encryption provides secure voice and data via IPsec with AES/DES strong encryption and automated keying via Internet Key Exchange (IKE). In addition, advanced call-router functionality includes least-cost call routing with flexible dialed-number plan support.

The SmartNode survivability suite combines PSTN fallback, SIP Registrar and IP-link redundancy to ensure business continuity in case the IP network fails. Patton’s DownStreamQoS™ delivers the advantage of clear, uninterrupted voice-and-data communication. Session border router capabilities include optional transcoding for up to 60 channels. Reduce WAN-access bandwidth requirements by converting high-bandwidth G.711 calls on your LAN into lower-bandwidth G.723 calls for WAN transport.

Patton SN4981 offers a smooth transition to VoIP with strong number portability. This allows you to continue to make and receive calls via the PSTN while your SIP provider is in the sometimes long process of porting your numbers over to SIP. When your numbers are completely SIP based, the SN4981 will dynamically switch to SIP so the transition from POTS to VOIP is seamless and instant.

The Smartnode 4981 models offer all the same features as the Patton SN4980 models with the addition of a high-precision clock to deliver IP Telephony service in demanding ISDN or DECT environments with super reliable fax and modem performance.

Click here for the Smartnode 4981 Series Datasheet

Patton SN4981 Specifications:

  • PSTN:
  • • Up to four T1/E1/PRI ports (NE/TE)
  • • Signaling support (ISDN DSS-1, NI-2, Q.SIG, CAS Robbed bit loop and ground start, E&M, immediate, wink, double wink)
  • • ISDN speech, audio & data (Fax Gr 4, UDI 64, RDI64)
  • • ISDN supplementary services
  • • CAS protocols: RBS (Loop start, ground start, E&M wink, intermediate, double-wink) and R2/MFC-R2 (Q.400–Q.490 and Configurable country profiles)
  • • Fallback-relays on 4 port versions
  • VoIP:
  • •SIPv2 (SIP Info, Update, PRACK, Privacy, Refer), B2BUA, H.323v4 (H.235, Early H.245, H.245 tunneling, fast-connect)
  • Voice Processing:
  • •Codec G.711 a-law/mu-law, G.723, G.729ab, G.726, G727, T.38 fax relay (9.6 k, 14.4 k)
  • • G.711 transparent fax and bypass
  • • 128 ms echo cancellation
  • Call Routing and Services:
  • • Regular expression call routing and manipulation
  • • number blocking
  • • short-dialing
  • • digit collection, distribution and hunt groups
  • Data Interfaces:
  • •Two (2) 10/100/1000 TX Ethernet Ports
  • • Autosensing
  • • Auto-MDI
  • • Full-duplex
  • IP Routing:
  • • IP access router
  • • DHCP Client & Server
  • • RIPv2
  • • BGP
  • • VRRP
  • • Packet fragmentation
  • • Firewall
  • • NAT/NAPT RFC 1631
  • • Access Control Lists
  • • DMZ port
  • • IPsec VPN (Option)
  • Management:
  • •Web/HTTP, CLI with local console & remote Telnet access
  • • HTTP/TFTP configuration & firmware loading
  • • SNMP MIB II and product MIB
  • • SYSLOG
  • • Secure autoprovisioning for both firmware & unit/subscriber configuration
  • • Built-in diagnostic tools (trace, debug, call generator)
  • Power:
  • • External Power: 100–240VAC (50/60 Hz)
  • Single T1 SN4981 Models

    The Patton SN4981 comes with 1 or 4 T1 ports activated. The 1T1 models can support up to 30 VoIP Channels. Contact your VoIP Supply sales representative for channel upgrade licenses.

    Quad T1 SN4981 Models

    The Patton SN4981 with 4 T1 ports enabled offers 15 to 120 VoIP Channels and can be upgraded with a software license. Contact your VoIP Supply sales representative for channel upgrade licenses.

    By clicking this button, VoIP supply will send you an email with a build list and price based on the options configurated for your phone system needs.

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