TAPI Telephony API A programming interface that allows Windows client applications to access voice services on a server. 802.1p An IEEE standard for providing QoS using three bits (defined in 802.1q) to allow switches to reorder packets based on priority level. TOS Type of Service A method of setting precedence for a particular type of traffic for QoS. 802.1q An IEEE standard for providing virtual LAN (VLAN) identification and QoS levels.
