AltiGen comm ACM 5.1 사용자 설명서

AltiWare ACM 5.1 Administration Manual 315

24

Real-time applications such as voice communications require a networking environment 
that meets certain requirements to deliver and maintain good voice quality. Follow these 
network configuration guidelines when using AltiWare’s VoIP features.

•

If you subscribe to the public IP network or use your own Intranet, make sure the 
maximum network delay is less than 100 milliseconds.

•

Also, the typical packet loss rate should be less than 1 percent.

The following table lists bandwidth requirements for various transmission media with 
different codecs and frame sizes. It assumes silence suppression is not turned on. (The 
same table appears on page 324.)
 

•

The Jitter Buffer should be adjusted according to the bandwidth allocated to data 
traffic. For example, a long Ethernet packet (approximately 1500 bytes) traversing 
through a WAN which is allocated with 256 kbps of data traffic bandwidth will take 
about 50 milliseconds. The Jitter Buffer value should be set to this WAN link 
transmission delay plus the typical network jitter delay. To configure the Jitter 
Buffer, in AltiEnterprise Manager (VoIP > Enterprise Network Management) 
click the Codec button.