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  • warning: Parameter 2 to user_relationship_defaults_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_elaborations_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_mailer_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • : Function ereg() is deprecated in /home/vishnu83/public_html/includes/file.inc on line 896.
  • : Function ereg() is deprecated in /home/vishnu83/public_html/includes/file.inc on line 896.
  • : Function ereg() is deprecated in /home/vishnu83/public_html/includes/file.inc on line 896.
  • : Function ereg() is deprecated in /home/vishnu83/public_html/includes/file.inc on line 896.
  • : Function ereg() is deprecated in /home/vishnu83/public_html/includes/file.inc on line 896.
  • : Function ereg() is deprecated in /home/vishnu83/public_html/includes/file.inc on line 896.
  • : Function ereg() is deprecated in /home/vishnu83/public_html/includes/file.inc on line 896.
  • warning: Parameter 2 to user_relationship_defaults_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_elaborations_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_mailer_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_defaults_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_elaborations_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_mailer_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_defaults_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_elaborations_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_mailer_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_defaults_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_elaborations_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_mailer_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_blocks_user_relationships_type() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_implications_user_relationships_type() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_defaults_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_elaborations_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_mailer_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_defaults_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_elaborations_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_mailer_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_defaults_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_elaborations_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_mailer_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_defaults_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_elaborations_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_mailer_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_defaults_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_elaborations_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_mailer_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_defaults_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_elaborations_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_mailer_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_defaults_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_elaborations_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.
  • warning: Parameter 2 to user_relationship_mailer_user_relationships() expected to be a reference, value given in /home/vishnu83/public_html/includes/module.inc on line 471.

SMS CALL FLOW BETWEEN GSM AND CDMA NETWORK

The above fig illustrates sms flow between GSM and CDMA network.CDMA network uses the concept of sudo HLR for SMS routing.
·         MOBILE subscriber from GSM network initiates an Originating SMS to be delivered to a CDMA network.
·         Now MSC A forwards the SMS packet to SMSC-A (MO-FORWARD-SM).
·         ROUTING USES SCCP CALLING ADDRESS: GT OF MSC AND
SCCP CALLED ADDRESS GT OF SMSC(SERVICE CENTRE ADDRESS)
·         INFORMATION CONTANS: SMS,A NUMBER, B NUMBER, SC ADDRESS
·         SMSC AFTER CHECKING BASIC AUTHENTICATION, RESPONDS WITH MO-FORWARD-SM-ACK
·         ONCE THIS ACK REACHES TO HANDSET, ORIGINATOR KNOWS THAT HIS MESSAGES HAS BEEN SUBMITED INTO THE SMSC
·         NOW SMSC NEEDS TO KNOW THE LOCATION OF SUBSCRIBER B. SO SMSC INITIATES SRI QUERY(SEND ROUTING INFORMATION). SMSC SENDS THE PACKET TO GW MSC-A, WHICH FURTHER FORWARDS TO CDMA-GWMSC.
·         CDMA GWMSC FORWARDS THIS PACKET TO PSEUDO-HLR (RESIDES WITHIN SMSC-B).
·         PSEUDO-HLR RESPONDS WITH A FAKE-IMSI, FAKE-VLR ADDRESS(GT OF SMSC-B)
·         SMSC DOES NORMAL MT-FSM TO THIS FAKE-VLR GT RECEIVED IN SRI-ACK.
·         SMSC-B RESPONDS TO THIS MT-FSM WITH MT-FSM-ACK.
·         SMSC-A KNOWS THAT ITS MESSAGE HAS BEEN DELIVERED AND INFORMS ORIGINATOR SUBSCRIBER IF “STATUS-REPORT” HAS BEEN REQUESTED.
·         SMSC-B NEEDS TO KNOW WHERE ITS CDMA SUBSCRIBER B IS LOCATED
·         SO SENDS SMS-REQ MESSAGE TO LOCAL HLR.ONCE THE LOCATION OF SUBSCRIBER IS KNOW
·         SMS IS DELIVERED USING MT-SMDPP MESAGE.
 

 cdma gsm call flow