vIPer™ Secure Cloud Phone Service, VOCAL SPRAG

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.

The Problems

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. 

The VOCAL Cloud Server Solution

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.