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Chapter3–InstallingSoftware
24 MultiVOIP®Voice/FaxoverIPGateways
Toconfigurechannels:
1. FromtheSelectChanneldrop‐downlist,selectthechannelyouwanttoconfigure.
2. IntheFax/ModemParametersgroup:
a. FromtheSetMaxBaudRatedrop‐downlist,selectaratethatmatchesafaxmachine(2400to14400
bps).
b. DonotchangethesettingintheFaxVolumedrop‐downmenu.Suchchangescanadverselyimpactthe
modem’soperation.
c. Fromthe
JitterValuedrop‐downlist,selectthedesiredtimeforpacketreassembly.
d. FromtheModedrop‐downlist,selectT.38orFRF11.
e. ToallowmodemtrafficthroughtheVOIPsystem,checktheModemRelayEnablecheckbox.
3. DonotchangesettingsintheDtmfgroup.AdjustingVoiceGainandDTMFmayadverselyaffectquality.
4. IntheSelectedCoderdrop‐downlist,selectacoderorallowautomaticnegotiation
5. IntheAdvanceFeaturesgroup:
● Tonotsendsilencepackets,checkSilenceCompression.
● Toremoveechoandimprovevoicequality,selectEchoCancellation.
● Torecoversomebadpack ets, checkForwardErrorCorrection.
6. UsetheAutoCall/OffHookAlertgrouptoallowautomaticallycallingofaremoteVOIPwithoutdialing.This
isdescribedingreaterdetailinChapter4.
7. IntheDynamicJittergroup,changevaluesifnecessary(detailsinChapter4)
● SelectanyAutomaticDisconnectionoptionsneededtoensureline sarenotleft“open”
● ConfigurablePayloadTypesarebestleftattheirdefaults.Notinthe–SSmodels
8. Configureeachchannelasdescribedintheprecedingsteps.YoucanusetheCopyChannelbuttontoquickly
transferthesettingsfromonechanneltoanother.