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| | |-+  CDMA-SMSC: HLR responds to local node ?
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Author Topic: CDMA-SMSC: HLR responds to local node ?  (Read 814 times)
parasa
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« on: July 18, 2005, 06:27:44 UTC »

Hi,

Is this true that a CDMA-SMSC can deliver message only in its MSC coverage areas
( where it can route messages on the basis of SSN+PC) ?

What we are observing here is a situation where operator wants us ( GSM-CDMA gateway) to route message to a distant cdma-SMSC on the basis of PC+SSN. Is this the normal practice followed by all CDMA operator or depends on network implementation or it is a short cut followed as there is no roaming facility available as of now.
 ( No Raoming infers -> No query to local HLR from foreign networks infers -> so HLR can respond to local nodes only).

Kindly suggest ...

Regards,
Parasa Kiran



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Thanks & regards,

Parasa kiran
India
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« Reply #1 on: July 18, 2005, 08:44:30 UTC »

CDMA, TDMA rely on ANSI-41 to do all routing.. and unlike GSM, it severly lacked in many areas.. had no global title support for years.. no IMSIs for a long time.

Of course both of these issues have been addressed in the standards now..  you may find however that some networks are not yet migrated toward using global title routing and IMSIs for full portability.

So yes.. it is realistic to find yourself routing to a distant network using PC/SSN.. carriers will sometimes agrees on ranges for each to use.

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Regards,
   Cormac Long
   Webmaster & Technical Enquiry Moderator,
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