Sierra Wireless 20070914 Manual

A SERVICE OF

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Rev 3.0B Feb.08 133

B

B: Circuit Switch Communications

• Step by Step

Configuration

• Step by Step

Configuration

Circuit‐switchcommunicationrequirestheRaventobein

PassThrumode,communicatingdirectlywiththeinternal

hardware.

Note: When the Raven is used

for circuit switch, the circuit

switch configuration will disable

all ALEOS features except for

serial port communication.

PassThrumodedisablestheuseofALEOSinthemodem.Any

featuresavailableusingALEOSarenotusablewhenthe

modemisinPassThrumode.InPassThrumode,thesettings

availablearethoseoftheinternalhardware.TheRavenC3211

inPassThrumodecansavesettingsinternal lylikeaconven

‐

tionalanalogmodem.TheRavenC3210orC3216inPassThru

modecannot.

Thebestmachinesforuseincircuit‐switchedmodeareones

thatcanprovidetheirownINITorsetupstringsand/orissue

ATcommands.Forcustomerswhohaveunin telligent

machineswhostillneedtohavethemodemʹreadyʹtobehave

inacertainway(suchasAuto‐Answeringcircuit‐switched

data

calls),thereisafeatureinthemodemcalledtheINIT

STATE.

ForCDMA/1x,circuit‐switchedconfigurationrequiresavoice

plan(account)withyourcarrier,nota1xRTTdataplan.1xRTT

featuresarenotcompatiblewiththecircuitswitchconfigu

‐

ration.Voiceplanspeedsaregenerallylowerthanthoseofa

dataplan.Itisgenerallynoteasytoswitchfromoneplanto

theother.

Configuring Circuit-Switch

TheRavenneedstobeconfiguredtoenterintoPassThruafter

startup.YoucanuseAceManager(preferred)ordirectserial

communicationtoconfiguretheRaventoworkinPassThru

modeandforcircuit‐switchedcommunications.IntheUDP

group,selecttheMDcommandandchoose07‐PassThru.