Voice and Video Communications

The uCLS1012A-VoIP combines the power of an Arm v8, 64-bit processor with SIPxtream communications and Mbarx Secure IoT firmware.

Hardened communications

SIPxtream firmware doesn’t just enable voice and video communications it provides extensions to secure it, improve resilience, provide redundancy, monitor quality, improve intelligibility and even self-test.

Beyond the call

The uCLS1012A-VoIP supports up to 2 channels of VoIP, multicast PA, messaging, fileplay announcements and optional camera integration for streaming video. If your real-time communications application needs a workhorse, the uCLS1012A-VoIP answers the call. 

Management built-in

We built the uCLS1012A-VoIP as a versatile communications platform, then we extended it to give you a full-featured secure WebUI, secure host protocol, facilities for local application integration, remote management and telemetry. 

Edge software that gives you the edge

Standard Linux platform support in Buildroot, standard Docker container support and with SIPxtream and Mbarx firmware – unleash your next edge application with the uCLS1012A-VoIP.


Highly flexible, real-time communications for hardened devices.

Intercom Systems

Intercom Systems

  • Public safety intercoms and help points
  • Building entrance and access control systems
  • Elevator cabin, stairwell and parking garage communications
  • Passenger assistance communications
  • Patient care and nurse call systems

Public Address and Notification

Public Address and Notification

  • School bells and communications systems
  • Campus wide PA paging systems
  • Fire panels and public safety communication
  • Automated evacuation messaging and instruction
  • Passenger information systems
  • Mass transportation, station and airport comms
Radio Systems and Specialized Applications

Radio Systems and Specialized Applications

  • DMR/LMR radio convergence
  • Radio-Over-IP backhaul
  • Wi-Fi belt packs, headsets and wearables
  • Industrial equipment integration
  • Presentation and conference systems

Product Specifications

Easily integrated, Linux enabled with support and software stacks to get you to market.

  • uCLS1012A-VoIP module
  • Module host board, cables, power supply
  • Support site access (1 year)
  • Installation and maintenance support (1 year)
  • Documentation, integration schematics
  • SIPxtream firmware with VoIP, multicast PA, messaging, fileplay announcements and optional camera integration
  • Mbarx firmware with WebUI and remote management / telemetry
  • Mbarx System Manager tool (Win/Mac free trial)
  • Mbarx Virtual Control Panel tool (Win/Mac)


Core Processor and Memory
  • NXP QorIQ® LS1012A processor
  • 800MHz 64-bit, Arm® Cortex®-A53 (Arm® v8) core
  • 512MByte DDR3-SDRAM
  • 64MByte QuadSPI NOR flash (up to 128MByte)
  • 32GByte eMMC (optional)
Connectivity and Peripherals
  • 2x Gigabit Ethernet
  • Packet Forwarding Engine (PFE)
  • Security engine (SEC)
  • PCIe Gen 2
  • SATA Gen 3
  • USB 3.0 host
  • SDIO 3.0
  • Up to 16 GPIO (1.1-3.6VDC tolerant)
  • Audio subsystem with class-D amplifier (optional)
  • 802.15.4 radio with BLE/Thread® stacks (optional)
Audio System
  • Up to 2x VoIP analog lines
  • 1x full-duplex VoIP line with AEC and Noise Reduction
  • 2x full-duplex VoIP lines with no AEC or Noise Reduction
  • 1x full-duplex VoIP line with AEC and Noise Reduction and 1x half-duplex output with no AEC or Noise Reduction
Audio Connectivity
  • 16-bit PCM with 8KHz, 16KHz sample rates
  • Headphones out – Mono, 1.25 Vrms (3.5Vp-p) 16-32Ω
  • Line out – 1.0 Vrms (2.8Vp-p) @ >10kΩ
  • Line input – 1.0 Vrms (2.8Vp-p) @ 5-15kΩ
  • Mic input – adjustable bias and gain 2.6Vdc 5-15 kΩ
Physical and Ratings
  • +3.3VDC +/- 5% 6W max (TBR)
  • -40°C to +85°C parts rating (TJ)
  • 315-pin SMARC (MXM 3.0) module mating connector (MM70-314-310B1-2-R300)
  • 82 x 50mm physical size

System Software

  • Linux OS with standard networking, DHCP, DNS, NTP…
  • Standard Buildroot platform support (downloadable) https://buildroot.org/
  • Preinstalled SIPxtream voice and video communications firmware
  • Preinstalled Mbarx Secure IoT endpoint firmware
  • Downloadable value-add software

SIPxtream Firmware

VoIP Call Control and Operation
  • Up to 2x analog audio VoIP lines (refer to audio system for supported configuration options)
  • SIP/RTP with full-duplex voice communication
  • SIP infrastructure (PBX) and P2P (standalone) compatibility
  • Call originate/receive, called-ID, hold/retrieve, transfer, auto-answer/hang-up, info messaging
  • Auto-answer ring timer
  • Covert listen mode
  • Suppress audible ring notification
  • Hotline (hook switch input) (optional)
  • Push-to-Call (PTC inputs) (optional)
  • PTT (optional)
  • Mbarx Secure IoT support with host protocol integration
VoIP Signaling and Media
  • SIP Fields (User, AuthID, CID, proxy, server, outbound proxy)
  • UAC/UAS stacks with standard transaction timers
  • REINVITE, REPLACES extension
  • OPTIONS ping request/response extensions
  • SIP priority, call type, answer mode extensions
  • Text messaging via SIP-INFO
  • Early media, late media
  • G.711ulaw, G.711alaw, G.722 (wide band) audio codecs, 20mS ptimes
  • iLBC, audio codec (optional), 20 or 30mS ptimes
  • DTMF RFC4733, in-band, SIP-INFO
  • DTMF tone generation
  • Configurable SIP tag lengths
  • SIP server via DHCP option 120 (optional)
  • SIP server via DNS-SRV (optional)
VoIP Calling Features
  • Caller-ID name, number, date, time, user provided privacy, block
  • Anonymous Call Rejection (ACR)
  • Message Waiting Indicator (MWI)
  • Call hold / retrieve
  • Music-on-Hold (MoH) compatibility
  • Held call ring-back
  • Call Waiting (CW), Cancel Call Waiting (CCW), disable call waiting
  • Call transfer – unattended, attended (REFER), attended (REPLACES)
  • Failed transfer ring-back (NOTIFY)
  • Missed call notification (when busy)
  • PA broadcast notification (when busy)
  • Do Not Disturb (DND)
  • Auto Call-Back on busy (ACB)
  • Call return
  • Local conference bridging (3WC) (optional)
  • Remote conferencing (meetME)
  • Phonebook / speed dials
  • Call forward
  • Outgoing call blocking rules
  • Door lock output signal (DTMF controlled)
Advanced VoIP Configuration
  • RTP port range
  • DiffServ RTP, SIP tagging
  • VLAN assignment 
  • Runtime signalling overlays
  • Dynamic caller-ID
  • Dynamic registration, registration expiry offer period
  • Say IP address, SIP phone number
VoIP Security
  • sRTP
  • sRTCP
  • SIPs (security extensions)
Multicast PA Service (with control protocol)
  • Half-duplex, one-to-many, multicast RTP transmitter and receiver
  • SIP infrastructure (PBX) or P2P (standalone) compatibility
  • Up to 100 configurable talk groups/channels
  • Multicast Paging (MCPG) control protocol with keep-alive messages
  • Configurable protocol address / port
  • Unique multicast address per PA group
  • Protocol extensions (tones, text, security..)
  • Multiple concurrent transmitter support
  • Last-in wins arbitration (suitable for PTT/radio applications)
  • Stuck transmitter protection
  • Return to idle on loss of service
  • Recover session on acquisition of service
  • VoIP call notification during PA session
  • PA notification during VoIP call
  • VoIP (Rx)-to-MCPG (Tx) (suitable for wide-area paging)
  • G.711u (8KHz narrow band), G.722 (16KHz wide-band) audio codecs, 20mS ptimes
  • IGMP support
  • Compatible Linux PC application example (optional)
Generic Multicast PA Service (no control protocol)
  • Half-duplex multicast RTP receiver only
  • Up to 10 paging groups
  • Up to 10 priorities
  • One transmitter source
  • Unique multicast address per PA group
  • G.711u (8KHz narrow band) audio codec, 20mS ptimes
  • IGMP support
  • Compatible with common PBX intercom and PA support (e.g. Asterisk®, Freeswitch®, Polycom®)
  • Compatible with stand alone PA and paging applications (e.g. Bell Commander®)
Fileplay Service
  • Call progress announcements
  • Add/remove custom audio files
  • Dedicated local audio file storage (no external connection or streaming required)
  • Play audio file on trying / ringing, connect, terminate
  • Play audio file to analog, RTP or both
  • Scriptable (on-demand) audio file playback (suitable for station stop, passenger information or evacuation notification)
  • Basic IVR for system setup (e.g. load config file / reset)
Video Services
  • Camera integration (UVC/USB)
  • mJPEG video streaming
  • RTSP (H.264 / H.265) (optional)
  • RTSP player with scrubbing controls (optional)
  • WebRTC (optional)
  • SIP video calling (optional)
Audio Intelligibility and Specialized Algorithms
  • Acoustic Echo Cancellation (AEC) (refer to analog audio)
  • Noise Reduction (NR) (refer to analog audio)
  • Automatic Gain Control (AGC) (optional)
  • Dynamic Range Compression (DRC) (optional)
  • Active Talker Algorithm (ATA) (optional)
  • Background audio level detection (optional)
  • PCM peak audio Level detection (optional)
  • Multichannel mixer fabric (VPmix) (optional)
  • Discontinuous Transmission (DTX) (optional)
  • Audio event detection e.g.: T3 Alarm (optional)

Mbarx Secure IoT Firmware

System Integration
  • Support for local and wide area management
  • Support for host control and telemetry
  • Secure webUI
  • TLS v1.2 encryption, x509 certificate authentication
  • OTA firmware updates
  • Auto firmware upgrades
  • Connection origination service (call home)
  • Configuration template/file provisioning
  • System alarms
  • Local system logging
  • Remote system logging
  • Factory reset, reboot
  • Compatible with Mbarx tools and gateways
  • Host protocol for configuration/operation by UART or TCP/IP
  • Dedicated filesystem partition for on-board host control application
  • Linux host control application example
  • 802.1x port authentication (optional)
  • SNMP v2c (optional)
Gateways and Tools Compatibility
  • Mbarx System Manager tool for local or remote configuration and management
  • Mbarx Site Controller Gateways for remote sites, configuration and management
  • Mbarx Operations Controller Gateways for workflow/OT system integration
  • Compatible with Mbarx Virtual Control Panel (development tool)
uCLS1012A-IoT Block Diagram

Additional Information

Learn more about how uCLS1012A-VoIP can help you.

Let’s get started