We have just received in stock SONUS PNS41 boards.  Any chance that you are looking for some?

The SONUS Networks PNS41, part number 850-10205, HECI code NGI7AN2, is a Dual Gigabit Ethernet Packet Network Server.  It supports either two full-duplex single mode optical gigabit Ethernet links or two full-duplex multi-mode optical gigabit Ethernet links, depending on the PNA adapter used.  The dual-ports, complemented with additional processing power, allows the PNS41 module to more than double the packet processing capabilities of the PNS30.  The PNS41 also provides enhanced packet to packet support.  Both voice and data traffic flow through this module.

It is possible you may be more familiar module as a Ribbon Communications 850-10205.

In addition to the 850-10205, TruePulse has access to other SONUS modules.  In fact, we buy and sell equipment from numerous manufacturers, including Lucent, Hekimian, Newmar and IBM.  Please contact us for all you Central Office telecommunication equipment needs.