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Telos Zephyr Xstream Two-Way Radio User Manual

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USER’S MANUAL

Section 11: THE WORKS – Detailed Menu Reference 220

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ISDN TIP FOR BELLSOUTH CUSTOMERS!

Despite the fact the BellSouth originated the proposal for the standardised SPID (see above),

many regional Bell South offices leave off the last two digits of the SPIDs when giving them to

customers.

If you are a BellSouth customer and are given a SPID of the format: Area Code + 7 digits +

01 and you get "SPID Error" your correct SPID is probably Area Code + 7 digits + 0101 or

Area Code + 7 digits + 0100.

MSN/DN 1 (Multiple Subscriber Number/Directory Number 1)

TheuseofthisfielddependsontheISDNprotocolusedonyourISDNBRIcircuit.

DirectoryNumbers(NationalI‐1andDMSCust.)

WhenyouareusinganISDNprotocolotherthanETS300,INS64,orAT&TCust.

(PTP),youmustenterthe“DirectoryNumber”(DN)here.Th

isisthefirstDN.

Thisissimplythe7‐digittelephonenumber.

Amis‐enteredDNwillcauseproblemswithincomingcallstothatchannel.

MultipleSubscribernumbers(ETS300andINS64only)

UsedonlywhenyouareusingtheETS300EuroISDNorINS64JapaneseISDN

foryourTelcomode,andanotherIS

DNdeviceissharingthelinewiththe

ZephyrXstream.MSN1correspondstothefirstBchannel.Thisissimplyoneof

yourassignedtelephonenumbers(oftenyouwillbeassigned3ormore).

IfnoMSNsareentered,thefirstcalltoanyofthenu

mbersassociatedwiththe

ISDNcircuitwillringintotheXstreamas“line1”ifthat“line”isidle.If“line1”is

inuse,thecallwillringinon“line2”.Thisispreciselythesamebehavioras

whenalinewiththe“AT&TCustomPTP”protocolisused.

ETS‐300ISDNservicefrequentlyincl

udes3MSNs.Typicallyoneofthesewould

beenteredinallvoiceterminals,withtheothersenteredintheXstream.

Amis‐enteredMSNwillcauseproblemswithincomingcallstothatchannel.

Sincethesearenotneeded,youshouldleavethemblan

kunlessspecifically

needed.

MSN/DN 2

ThesecondMSNorDN.Seeabove.



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