Multi-Tech Systems MVPGSM-2 Manuale Utente

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Chapter 3: Software Installation 
Multi-Tech Systems, Inc. 
MVPGSM 
17 
Actions: 
•  Select Channel 
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Choose channel parameters: 
ƒ  Fax and modem parameters are not available at this time 
ƒ  Modem Relay Enable allows modem traffic through the VOIP system 
ƒ  Adjusting the Voice Gain and DTMF should not be done as it may adversely affect voice 
and DTMF quality 
ƒ  Select a Coder or allow Automatic negotiation 
ƒ  Advanced Features 
•  Silence Compression, when enabled, will not send IP packets during times of 
silence 
•  Echo Cancellation removes echo to improve voice quality 
•  Forward Error Correction allows some bad packets to be recovered 
ƒ  Choose Auto Call / OffHook Alert settings 
•  For automatically calling a remote VOIP without dialing (details in Chapter 4) 
ƒ  Change Dynamic Jitter values if necessary (details in Chapter 4) 
ƒ  Select any Automatic Disconnection options needed to ensure lines are not left “open” 
ƒ  Configurable Payload Types are best left at their defaults.  
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The Copy Channel button is available for easily transferring these settings to the other channels 
•  Repeat for all channels to be used