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Telos Zephyr Xstream Two-Way Radio User Manual

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USER’S MANUAL

Appendix 3 – ISDN Cause Phrases/Values 301

Appendix 3: ISDN Cause Phrases/Values

WhenthereisanISDNeventorprobleminthenetwork,acausecodeappearsontheLCD

screenorISDNprotocollogthatcommunicatesinformationaboutthecauseofthetrouble.See

section12.2forhowtoenableISDNloggingthroughtheserialorTelnetport.These“Cause

Values”arenu

mbersgeneratedbythenetwork,whichtheXstreamtranslatestotheassociated

phrases.Whenpossible,weusethosesuggestedbytheBellcorestandard.Notethatinsome

casestheremaybemorethanonemeaning.Thiscanfrequentlybeevaluatedbywhetherthe

messagehasbeenreceivedbythecallingpartyorthecalle

dparty,orbytheISDNprotocolbeing

used.

Wehaveincludedthemostcommoncausecodeshere.Foracompletelist,see

http://www.telos‐systems.com/techtalk/default.htm.

CLASS 1.1 (normal)

CauseNo.1‐Checknumber,redial(unallocatednumber)

Thiscauseindicatesthatthecalledpartycannotbereachedbecause,althoughthecalledparty

numb

erisinavalidformat,itisnotcurrentlyallocated(assigned).

CauseNo.2‐Noroutetonetwork/Prefix0dialedinerror

Thiscauseindicatesthattheequipmentsendingthiscausehasreceivedarequesttoroutethe

callthroughaparticulartransitnetworkwhichitdoesnotre

cognize.Theequipmentsending

thiscausedoesnotrecognizethetransitnetworkeitherbecausethetransitnetworkdoesnot

existorbecausethatparticulartransitnetwork,whileitdoesexist,doesnotservethe

equipmentwhichissendingthiscause.

or

Thiscauseindicatestheprefix0isinvalidforth

eenterednumber

CauseNo.3‐Noroutetodest./Prefix1dialedinerror

Thiscauseindicatesthatthecalledpartycannotbereachedbecausethenetworkthroughwhich

thecallhasbeenrouteddoesnotservethedestinationdesired.Thiscauseissupportedona

network‐dependentbasis.

or

A1wasdiale

dwhennotrequired.Redialwithoutthe1.

CauseNo.4–Noprefix1/SpecialInformationTone

Theprefix1isnotrequiredforthisnumber

or

Thiscauseindicatesthatthecalledpartycannotbereachedforreasonsthatareofalongterm

natureandthataspe

cialinformationtoneshouldbereturnedtothecallingparty.

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