Teltone Substation Line Sharing Switch: Cut your substation telecom costs.

The SLSS has been discontinued, and is replaced by the Gauntlet Dial-up Gateway, a drop-in replacement offering enhanced security for protecting critical cyber assets. Click here for more info, or contact Teltone Sales.

With over 10,000 units installed in North American substations, the now retired Substation Line Sharing Switch has earned its status as the industry standard for reliable phone line sharing in demanding environments. The legacy of reliability continues with the next-generation Gauntlet Dial-up Gateway, offering enhanced security for control system protection.

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