Quintum Tenor AS Product manual - page 14

P/N 480-0059-00-10

1-5

Chapter 1: Overview

Capabilities

SelectNet™ Technology Safety Net

Quality of service is virtually guaranteed. Tenor AS ’s built-in patented SelectNet

™

 Technology 

provides a “safety net,” which virtually guarantees that each call going VoIP will not only be routed 

successfully, but will deliver high voice quality. 

SelectNet monitors the IP network performance for VoIP calls. If the performance characteristics 

become unacceptable—according to the delay, jitter, and packet loss specifications you configure— 

the Tenor AS will switch the call to the PSTN automatically and transparently. The Tenor continu-

ously monitors your data network for jitter, latency and packet loss, and transparently switches cus-

tomer calls to the PSTN when required. 

PacketSaver™ reduces bandwidth consumption

PacketSaver packet multiplexing technology reduces the amount of IP bandwidth required to sup-

port multiple calls flowing between two endpoints. PacketSaver minimizes bandwidth usage by 

aggregating packet samples from multiple VoIP conversations and packing them into a larger IP 

packet with a single IP header. The process removes the need to send a bulky IP header with individ-

ual voice packets. As a result, it eliminates the transmission of redundant information. 

Figure 1-2 PacketSaver

Virtual Tie Trunk

The Tenor unit can emulate any tie trunk. It provides all of the functionality of a tie trunk, including 

the considerable cost savings, but eliminates the need for a PBX trunk to be configured, or marked 

as a tie trunk. (A traditional tie trunk is a PBX-configured direct connection between two PBXs in 

separate locations. The tie trunk bypasses the PSTN network, which results in considerable savings.)

Your PBX does not need any additional configuration. The Tenor AS treats all trunks the same with-

out compromising voice quality.

Conventional VoIP Transmission Sends Many Redundant Packet Headers

Tenor 

Tenor 

Tenor using PacketSaver to Minimize Bandwidth Usage 

Tenor AS

Tenor AS