text: Avaya to buy German IP telephony vendor U.S. telecommunications equipment maker Avaya Inc. increased its presence in Europe to the tune of about \$635 million on Tuesday, agreeing to acquire German enterprise communications vendor Tenovis GmbH   Co. KG.
inputs: Avaya to buy German IP telephony vendor U.S. telecommunications equipment maker Avaya Inc. increased its presence in Europe to the tune of about \$635 million on Tuesday, agreeing to acquire German enterprise communications vendor Tenovis GmbH   Co. KG.