Cisco is working with voice-over-IP specialist Vocaltec to link their respective Internet telephony products.
The two companies will use the International Telecommunications Union's (ITU) H.323 standard to ensure their gateway and gatekeeper technologies work together. Field trials are expected to begin at the end of the year with products expected in the first half of 1999.
Gatekeeper technologies add intelligence to IP telephony gateway systems to offer features such as Internet call waiting and the ability to select the cheapest access route.
Vocaltec has also been working with Lucent and Ascend to allow interoperability with their products.
Cisco's voice-over-IP systems include the Cisco 2600 and 3600 gateways, the AS530 gateway and Access Path VS3 access system.
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