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Small white rectangular box with two phone ports and two network ports, wall-mountable

Cisco Systems, Inc.

Cisco Systems, Inc. ATA1923PWK9 2-port VoIP adapter with router

SKU CH-PE98-FC030 MPN ATA1923PWK9

Connects two analog phones or fax machines to an IP network using dual FXS ports with an integrated router and four-port Ethernet switch

  • TypeOthers
  • Connect analog phones and fax machines via two FXS ports
  • Extend wired network with integrated router and two 10/100 Mbps Ethernet ports
  • Clear voice quality with MOS above 4.0 and jitter under 150 ms
  • Advanced call features including forwarding, hold, transfer and three-way conferencing
  • QoS support using IEEE 802.1p/Q and Differentiated Services for traffic prioritisation

Cisco ATA 192 VoIP adapter with router

The Cisco ATA 192 turns traditional telephones, fax machines and paging devices into IP endpoints for enterprise, small office or cloud UCaaS deployments. It provides two independent FXS ports, each configurable as a separate SIP registration. The unit also integrates a high-performance router with two 10/100 Mbps Ethernet ports to extend local network connectivity.

Sustained voice quality and routing load

Voice quality targets a Mean Opinion Score above 4.0 with jitter kept below 150 ms during extended sessions. QoS support via IEEE 802.1p/Q and Differentiated Services prioritises voice traffic over other data flows. The integrated router handles NAT, DHCP reservation, MAC cloning, port forwarding, DMZ mode and VPN pass-through continuously without degrading call clarity.

Practical limits of 10/100 Ethernet and SIP

The two 100BASE-T ports cap wired throughput at 100 Mbps, which restricts total LAN-side bandwidth available for concurrent calls and data. Only two SIP registrations are supported, so deployments needing more simultaneous lines require additional adapters. The device works with third-party call control systems and does not operate with Cisco call control platforms.

Highlights

  • Connect analog phones and fax machines via two FXS ports
  • Extend wired network with integrated router and two 10/100 Mbps Ethernet ports
  • Clear voice quality with MOS above 4.0 and jitter under 150 ms
  • Advanced call features including forwarding, hold, transfer and three-way conferencing
  • QoS support using IEEE 802.1p/Q and Differentiated Services for traffic prioritisation

Specifications

BrandCISCO SYSTEMS
TypeOthers
Shipping weight0.91 kg
Package size250 × 156 × 70 mm

Questions about this item

How much power does the Cisco ATA 192 draw when it operates continuously?

The unit is a small wall-mountable VoIP gateway weighing 4.70 oz with no moving parts, so it runs silently and adds negligible heat to a rack or desk.

Which cables and network services must be in place before the ATA 192 can register two SIP lines?

You need two analog devices plugged into the RJ-11 FXS ports, an Ethernet link to a 10/100 Mbps LAN that provides DHCP or static IPv4/IPv6 addressing, and a SIP trunk or hosted PBX that accepts third-party endpoints.

Will the ATA 192’s built-in router conflict with an existing 10/100 Mbps switch or older analog phones already on the LAN?

The adapter’s integrated router handles NAT, DHCP reservation, port forwarding, DMZ and VPN pass-through while its QoS tags voice traffic with IEEE 802.1p/Q, so it coexists with legacy switches and analog handsets without interference.

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