VOCAL Technologies Inc. 103
VOCAL Technologies Inc.

VOCAL Technologies Inc., founded in 1986, is a leading designer of software and hardware solutions under license for voice, video, fax, and data transmissions. We develop and apply advanced technologies for superior communication. VOCAL is dedicated to providing clients with industry-leading, innovative design solutions—the highest quality communications at the lowest cost.

VOCAL SPRAG Cloud Server Solution - the first and only VoIP service designed for vIPer™

VOCAL’s Secure Phone Registrar and Gateway (SPRAG) a SCIP-216 (MER) compliant secure cloud phone service offered by VOCAL Technologies for the Sectéra® vIPer™ Phone and other Secure Communication Interoperability Protocol (SCIP) based secure phones and devices. VOCAL’s SPRAG may be used by public, private, and governmental agencies to facilitate secure phone communications over public telephone and fiber networks.  VOCAL’s SPRAG service augments the public telephone network by serving as a gateway between the MoIP protocol used by these secure phones and V.32/V.34 modem communications over G.711 (SCIP 214.7) on the public telephone network.

Sectéra® vIPer™ phone often have issues operating from their on-premises secure location with their local telephone switches and/or their organization’s designated telecom provider.  The SIP-based local telephone switches and/or telecom providers typically do not understand MoIP and related aspects in SDP negotiations.  The real culprit faced by secure phone customers is operation over lossy packet networks even if the loss rate is very minimal. 

VOCAL’s SPRAG solves these problems (and others) by being collocated and QOS controlled to a major telecom carrier.   SPRAG works with secure phone devices as a secure voice gateway to these public telecom carriers.  MoIP protocols are used in secure mode with the vIPer™ phone over the potentially lossy network connections from the secure customer to VOCAL’s SPRAG server without loss. It should be noted that VOCAL’s SPRAG has been successfully used by over hundred customer terminals.  Network connections varied from the ordinary terrestrial-based packet networks to cellular 4G/5G networks and over a wide variety of transports, including Satellite services such as Inmarsat, Viasat and Starlink. Sectéra®, TalkSECURE™, and vIPer™ are trademarks of General Dynamics.


Complete Communications Design House

VOCAL’s Software modules provide secure, real-time unified communications for voice, video, radio and data over the Internet or any other IP network. This includes a wide range of VoIP codecs and Quality of Service (QoS) support, where efficient utilization and prioritization of existing bandwidth can ensure exceptional voice quality and maximal data transmission. 

Products & Services

• Embedded HW & SW Design

• RUST for mission critical software 

• Secure Communication (vIPer, STE, SCIP-215, SCIP-216, V.150)

• VoIP / MoIP / FoIP / RoIP

• VoIP / FoIP over Satellite with independent tandem T.38 links

• Audio processing & DSP (noise cancellation, compression, filtering, AGC, VOX, VAD)

• Acoustic Echo Cancellation & Beamforming

• Modulation & Communication Algorithms

• Low Bit Rate, Wide & Ultra-Wideband Vocoders

• MELP / LPC10 / TSVCIS - over IP / Radio

• Fax & Voice Signal Reconstruction

• Lawful Intercept of Facsimile, Data, Voice, VoIP & Video

• Analog Modem and/or Analog Telephone Adapter

• Radio/Audio over IP (including CTCSS, Selcall etc.)

• Digital Comm. for Unmanned Systems (NET IOP, MUM-T)

• Engineering support for standards compliance - MISRA C, DO-178B and others

• Off the shelf configurable or customized solutions

• Design and manufacture prototypes to meet times lines

VOCAL’s embedded libraries include a complete range of ETSI / ITU / IEEE compliant algorithms, in addition to many other standard and proprietary algorithms. Our VoIP vocoder source code is optimized for execution on ANSI C and leading DSP architectures from TI, ADI, AMD, Intel, ARM, MIPS, and other vendors. The software libraries are modular and can be executed as a single task under a variety of operating systems or standalone with its own microkernel. 


Aerospace Communications

VOCAL is a key contributor to the support of the overall communications ability for NASA’s Orion, suppling the audio centers to both the Radio Frequency and Telemetry Station (RFTS) and the Astronaut Communications team.

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