6th Contracting Squadron, Attn: LGCX, 2606 Brown Pelican Ave., Macdill AFB, FL 33621-5000

58 -- SOURCES SOUGHT FOR DEPLOYABLE VOICE SWITCH MODULES SOL F0860298RA157 POC Buyer: Deloris Cusick, (813) 828-3815 x368 Sources sought for Deployable Voice Switch Module (DVSM). Quantity 2 ea. SIC 3661. Description: The DVSM will provide an Integrated Services Digital Network (ISDN) voice circuit switching capability. A basic circuit switching function will be provided by a Commercial-Off-The-Shelf (COTS) ISDN Private Automatic Branch eXchange (PABX). The PABX will be packaged into a transit case for transport and equipment operation. Operation of the PABX will be made possible by assembling or integrating power, signal, control, interface, etc., functions within the transit case. Collectively, the PABX, assembly, integration and any necessary components comprise the DVSM program. The DVSM is an integrated package that can be acquired using COTS, Government-Off-The-Shelf (GOTS), or Non-Developmental Items (NDI). The DVSM will consist of a digital circuit switch(s) that shall provide voice and data switched services for analog/digital secure/non-secure voice and data communications. The circuit switch or PABX shall provide DSN features such as precedence and preemption allowing high priority circuits assured access. The PABX shall be designed to interoperate with standard 64-kb/s PCM circuits with standard commercial features. Routing shall be deterministic as in the DSN and commercial ISDN networks. Numbering plans shall conform to the current joint numbering plan approved for tactical use. The DVSM must operate as an extension of the DSN and provide a compatible interface to DSN. The interface to the DSN shall be T-1, T1 Primary Rate Interface (PRI) with commercial ISDN "D" channel signaling, DS0 or E&M trunks. An automatic Voice Network (AUTOVON) software package shall be provided to provide tandem multi-level precedence and preemption (MLPP). The ability to connect to a Public Switch Telephone Network (PSTN) shall be provided. When the connection is to PSTN, this may be a loop type interface, or an E&M or T-1, or T1 trunk, or a T1 PRI commercial ISDN with "D" channel signaling. Measures to limit outside access tothe deployed switching system shall be provided. Subscriber instruments will typically be 2-wire analog instruments (WECO 2500 or equivalent) and wireless instruments. Secure calls between two DVSM subscribers or between DVSM subscribers and DSN subscribers shall be via STU-IIIs, STE or equivalent type telephones. The capability to place secure calls between DVSM subscribers and subscribers serviced by legacy systems (TRI-TAC and MSE), using like instruments (STU-III to STU-III, Ky-68 to KY-68) shall be provided. Digital telephones shall provide the capability to pass data through the circuit switched system for those types of interfaces where this is appropriate (e.g. dial up video, data, etc.). An ISDN basic rate interface (BRI) is required. The DVSM shall provide the option of using voice compression techniques to reduce the trunk bandwidth over long haul transmission systems (Tropo, SATCOM, etc.). This shall be automatically controllable to permit FAX calls, secure STU-III calls, etc. to traverse the network without impediment. This Sources Sought synopsis is placed in order to generate an initial vendor list, for purposes such as obtaining market information and facilitating early industry involvement with the acquisition. A draft Purchase Description is available. We anticipate a "Best Value" type acquisition, considering technical acceptability, price, and experience/capability/performance. Please contact the buyer, Deloris Cusick, not later than 31 July 1998, at (813) 828-3815 x368, or fax to (813) 828-7792. Posted 07/17/98 (W-SN224814). (0198)

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