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Hardware/Software Revisions
The General Info screen, shown below, lists the loaded versions of the Runtime Image, Flash , Hardware
etc. If the firmware of the unit is in question, please visit our web site
PBXgateway II Software and Upgrade Instructions.
MI Path:
Gateway->Status->System->General Info
2) Voice Quality
Voice Quality Expectations
EXTenders use industry-standard voice compression methods to allow multiple users to connect using
minimal bandwidth. While the voice quality should remain excellent within the majority of customer
environments, it is still subjective and will often be interoperated differently from one remote agent to
another.
While the voice quality should remain excellent in all circumstances, you may notice some minor affects
depending on the voice compression selected. Here are some of the recommended guidelines:
G729a will compress audio to the maximum and as a result requires the least amount of bandwidth (8
simultaneous calls possible with 128K). This algorithm is designed to optimize audio in the frequency
range of the human voice and as a result tones outside of that range may sound muffled. For example
here are some of the affects you may notice with compressed audio:
•
Hold Music may sound less clear.
•
Dial Tone, DTMF Tones, and phone Rings may sound garbled particularly on speakerphone. They
still should function properly 100% of the time.
•
May experience some minor echo and reduced audio clarity when calling some Cell phones. They
often already compress audio.
•
May hear some echo and notice minor delay in the conversation if calling internationally. This is
caused by the delay in providing compressed audio and the fact that calling internationally may
already introduce some delay.
ADPMC32. If you are experiencing any of these problems and feel that it is not presenting you with
adequate voice quality, we recommend using the ADPCM 32 voice compression method. While it
PBXgateway II System Administrator's Guide
Figure 50:
General Info
(http://www.MCK.com/
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