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Telos Zephyr Xstream Two-Way Radio User Manual

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USER’S MANUAL

Section 13: Deep Tech Information and Troubleshooting 291

Condition: Unable to connect when using SIP mode.

Ifstandardstreamingworks,andSIPstreamingdoesnot,thentheproperportforSIPis

probablynotbeenopeneduponthefirewall.BoththeSIP(defaultis5060)andtheUDP

(defaultis9150)portsmustbeavailablewhenSIPisused.Audioinonlyonedirectioncanbe

causedbyha

vingtheUDPportopenonlyononeend.

13.6.6 Other Difficulties

Condition: Xstream powers up, but the writing on the LCD is too faint to read.

Possiblysomeonechangedyourcontrastsetting.Wemadethisthefirstselectioninthe

<SYSTEM>menuforareason.Followthesesteps:

1. Pressthe<TEL>buttononce.

2. Pressthe<SYSTEM>buttontwice.

3. Pressthe<SEL>bu

ttononce.

4. Pressthe<5>buttonrepeatedlyuntilthescreencontrastisatthedesired

level.Pressthe<SEL>buttontosaveyoursetting.

NOTE:Thecontrastissomewhataffectedbytemperature,soyoumayneedto

tweakthisoncetheunithascomeuptooperatingte

mperature.

Condition: No Basic Functionality

DoestheZephyrXstreamhavepower?

WhenevertheunitispowereduptheLCDdisplaybacklightshouldbeon.Ifthe

InterfacemenuselectionintheISDNmenuissetto"ISDN",theSYNCLEDshouldbe

illuminatedwheneverpowerisapplied.Istheswitchon?Isth

ecordplugged‐in?Does

theoutlethavepower?IstheXstream'sfuseblown(seebelow)?

TO PREVENT RISKS OF

ELECTRIC SHOCK,

DISCONNECT POWER

CORD BEFORE SERVICING

The installation and servicing instructions in this manual are for use by

qualified personnel only. To avoid electric shock do not perform any ser-

vicing other than that contained in the Operating Instructions unles s you

are qualified to do so. Refer all servicing to qualified service personnel.

CAUTION

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