User guide
Chapter 6: Using the Software
Multi-Tech Systems, Inc. MVPGSM 105
Advanced
Packetization Time
You can use the Packetization Time screen to specify definite packetization rates for coders selected in the
Voice/FAX Parameters screen (in the “Coder Options” group of fields). The Packetization Time screen is
accessible under the “Advanced” options entry in the sidebar list of the main VOIP software screen. In
dealing with RTP parameters, the Packetization Time screen is closely related to both Voice/FAX Parameters
and to IP Statistics. It is located in the “Advanced” group for ease of use.
Packetization rates can be set separately for each channel.
The table below presents the ranges and increments for packetization rates. The final column represents
recommended settings (based on the most common found) when operating with third party devices.
Packetization Ranges and Increments Recommendations
Coder Types Range (in Kbps); {default} Increments (in Kbps) Setting (in ms)
G711, G726, G727 5-120 {5} 5 20
G723 30-120 {30} 30 30
G729 10-120 {10} 10 20
NetCoder 20-120 {20} 20 20
Once the packetization rate has been set for one channel, it can be copied into the other channel by using
the Copy Channel button on the Packetization Time screen.