UScale IAD Series

High-density analog voice access gateways for 32, 96, and 224 FXS-port rollouts, built for SIP/VoIP interop, branch access, and staged analog-to-IP migration.

OpenVox UScale IAD staged migration and branch access topology

Choose the right UScale IAD density for analog access.

S132 provides 32 FXS ports with RJ45 cabling and supports Bridge or Router mode, making it the flexible entry model for branch access and smaller analog voice migrations.

Maximum FXS Ports
32
Physical Interface Type
RJ45
Network Interfaces
1 WAN, 3 LAN
Operating Mode
Bridge / Router
Maximum Line Distance
3 km
Power Consumption
52 W

Confirm cabling, access ports, and network mode before choosing a chassis.

UScale IAD selection depends on more than FXS density. Confirm the analog connector, service uplink, maintenance access, and Bridge or Router mode before planning wiring rooms, SIP access, and remote operations.

S132 RJ45RJ45 analog ports

32 FXS ports use RJ45 front-panel wiring for branch offices and smaller analog rooms.

S196 / S1224 DB68BHigh-density analog cabling

DB68B connectors support higher-density analog cabling for 96-port and 224-port deployments.

Console maintenanceRJ45 RS232 access

RJ45 RS232 console access supports local commissioning, recovery, and fault diagnosis when network access is unavailable.

Service and maintenance networkWAN/LAN or FE1/FE2/LAN

S132 uses WAN/LAN ports differently by mode. S196 and S1224 use FE1/FE2 as WAN/MGT service uplinks, with LAN reserved for maintenance access.

Power input planningAC/DC and redundancy

Confirm AC or DC input and redundancy requirements during quotation; source documents list dual AC input support for S132 and S1224.

IAD capabilities for high-density analog voice access.

Plan analog endpoints, SIP server registration, bridge or router network mode, and remote operations from the same access gateway family.

224Maximum FXS ports

High-Density FXS Access

Consolidate analog phones, fax machines, and endpoint lines across 32, 96, and 224 FXS-port models, with long-line planning for campus and factory wiring.

  • Map branch, campus, hotel, and operator access sites by endpoint count instead of generic series positioning.
  • Keep analog phone, fax, modem, and endpoint-line migration decisions tied to port, REN, and line-reach limits.
Proof chips
  • Maximum 224 FXS ports
  • Full-port concurrency
TLSSecure SIP transport

SIP And VoIP Interop

Register into SIP servers, IP-PBX platforms, softswitches, and IMS-style access networks while keeping codec, DTMF, echo control, and fax behavior configurable.

  • Register with SIP servers, IP-PBX platforms, softswitches, and IMS-style access networks.
  • Tune codec, DTMF, echo cancellation, jitter buffer, and fax behavior per deployment.
Proof chips
  • SIP v2.0 + RFC3261
  • T.38 / G.711 fax
1+3WAN / LAN interfaces

Network Mode Planning

Use Bridge mode for direct SIP access across the family, or S132 Router mode when a branch needs WAN/LAN separation, NAT, and local DHCP service.

  • Use Bridge mode for access-layer integration where routing stays upstream.
  • Use S132 Router mode when a branch needs WAN/LAN separation, NAT, and local DHCP.
Proof chips
  • Bridge mode across the family
  • S132 Router mode
TR-369Carrier remote management

Remote Operations

Support rollout and fault isolation with encrypted web access, SSH, SNMP monitoring, logs, configuration backup, firmware upgrade, and packet capture.

  • Use encrypted management plus TR-069, TR-181, and TR-369 provisioning paths for carrier rollout and fleet maintenance.
  • Collect logs, run packet capture, back up configuration, and upgrade firmware during fault isolation.
Proof chips
  • TR-069 / TR-181 / TR-369
  • Backup / upgrade / capture

Key features for UScale IAD access deployments.

A compact source-backed feature checklist for density, cabling, network mode, SIP voice, fax, and remote operations.

Access density and cabling

  • Maximum 32 / 96 / 224 FXS ports by chassis
  • Full-port concurrent calling for busy-hour sizing
  • Maximum 3 km FXS line distance
  • 2 REN analog endpoint load support
  • RJ45 interface on S132
  • DB68B high-density cabling on S196 and S1224
  • 1 WAN + 3 LAN network interface layout

SIP voice and fax interop

  • SIP v2.0 signaling with RFC3261 interop
  • UDP, TCP, and TLS transport options
  • Primary and backup SIP server registration
  • G.711A/U, G.729A, G.722, G.726, and iLBC codecs
  • G.168 echo cancellation up to 128 ms
  • T.38 and G.711 fax pass-through
  • SIP INFO, RFC4733, and In-band DTMF

Network and operations

  • Bridge mode across all models
  • Router mode on S132 for WAN/LAN branch access
  • IPv4/IPv6, VLAN, and QoS support
  • TLS, SRTP, HTTPS, and 802.1x security support
  • Web/HTTPS, SSH, SNMP v1/v2c, TR-069, TR-181, and TR-369 management
  • Configuration backup, firmware upgrade, and packet capture
  • Cloud management, API integration, logs, ping, and traceroute

UScale IAD Solution Scenarios

Plan analog access, SIP resiliency, and branch networking with the topology patterns documented for UScale IAD.

Explore more scenarios
Deployment pattern

SIP/IMS access and network separation

Use this pattern for hotels, campuses, factories, and operator access rooms where analog endpoints stay in place but SIP/RTP traffic moves to an IP voice network. The topology guide documents single-network Bridge access and dual-network separation for SIP/IMS dedicated links plus internal data or management networks.

UScale IAD dual-network SIP IMS access topology

Compare UScale IAD S132, S196, and S1224 specifications

Source-backed FXS density, interface type, network mode, voice, fax, and physical parameters from the UScale IAD whitepaper and topology guide.

SpecificationUScale IAD S132UScale IAD S196UScale IAD S1224
Access Density
Maximum FXS Ports3296224
Physical Interface TypeRJ45DB68BDB68B
Supported Analog EndpointsAnalog phones / faxAnalog phones / faxAnalog phones / fax
Maximum Line Distance3 km3 km3 km
Network And Operations
Network Interfaces1 WAN, 3 LAN1 WAN, 3 LAN1 WAN, 3 LAN
Operating ModeBridge / RouterBridgeBridge
SIP ProtocolSIP v2.0SIP v2.0SIP v2.0
Remote ManagementWeb/HTTPS, SSH, SNMP, TR-069, TR-181, TR-369Web/HTTPS, SSH, SNMP, TR-069, TR-181, TR-369Web/HTTPS, SSH, SNMP, TR-069, TR-181, TR-369
Voice And Fax
Voice CodecsG.711A/U, G.729A, G.722, G.726, iLBCG.711A/U, G.729A, G.722, G.726, iLBCG.711A/U, G.729A, G.722, G.726, iLBC
Echo CancellationG.168, 128 msG.168, 128 msG.168, 128 ms
Fax ModesT.38 / G.711 pass-throughT.38 / G.711 pass-throughT.38 / G.711 pass-through
Maximum Fax Rate14.4 kbps14.4 kbps14.4 kbps
Physical And Power
Dimensions440 x 44.4 x 318 mm440 x 44.4 x 317 mm440 x 86 x 317 mm
Weight2.44 kg6 kg10 kg
Power Consumption52 W150 W250 W
Power InputMaximum dual 100-240V AC or -48 to -60V DC100-240V AC or -48 to -60V DCMaximum dual 100-240V AC or -48 to -60V DC

Size the right UScale IAD for your analog rollout.

Share your FXS port count, network mode, power requirements, and rollout scale with the OpenVox team.