Appreciate anyone
who can help shed some enlightenment on the subject of SMS roaming and
timestamp.
Question:
1. If a user
travelling to a foreign country has roamed to another host network, and he sends
an SMS from his mobile to a local terminal in the host country, where does the
SMS get sent to first :
(a) the home SMSC
then routed to the host SMSC
(b) routed via the
host SMSC then fwd to home SMSC
(c) host SMSC then
directly to receiving terminal
2. What then is the
timestamp on the SMS arriving at the receiving terminal, if multiple SMSCs are
involved?
3. In a separate
scenario, if two users on different networks in the same country send each other
a message, I guess both network SMSCs will be involved in the routing process.
Who affixes
the timestamp on the SMS? The sender SMSC or does the receiver SMSC
replace the timestamp of the SMS received from sender SMSC.
Thanks a million for
the help.
Best
Regards,
Calvin
Boo
Singapore
