Download - Roaming v2
Seminar with TCIJune 16, 2011
Supot TiarawutTRIDI
Roaming in Wireless Networks, Shahid K. Siddiqui, McGraw-Hill 2
PLMN – Public Land Mobile Network = a mobile network = wireless equivalent of PSTN
VPLMN – Visiting PLMN HPLMN – Home PLMN
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Roaming in Wireless Networks, Shahid K. Siddiqui, McGraw-Hill 4
Once roamer is allowed to make outgoing calls by HPLMN, all the calls will be processed by VPLMN. HPLMN plays no further role in call processing.
Roamer needs to key completed international numbers, +<CC><NC><MSISDN>
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Roaming in Wireless Networks, Shahid K. Siddiqui, McGraw-Hill 6
Roaming in Wireless Networks, Shahid K. Siddiqui, McGraw-Hill 7
Roaming in Wireless Networks, Shahid K. Siddiqui, McGraw-Hill 8
More complicated Real time credit deduct Charging signals between visiting network
and home network
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A charge to roamer goes to
Home network
International network
Visiting network
Wholesale price charged by visiting network is usually high resulting in high roaming fee.
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REGULATION (EC) No 544/2009 Control ceiling of wholesale charge by visiting
networks Control ceiling of retail charge by home
networks
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EU can do it because EU government has control over European Countries.
THAILAND: we don’t have control over networks of other countries
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High charges High roaming charges everywhere
EU started regulations to curb intra-EU charges Un-intentional charging Due to increasing uses of smart phones
Roaming without data-off
Roaming into WiFi but turning on Data Roaming un-intentionally▪ Misunderstanding of WiFi signal as connected while
requiring network key or passwords to log on
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Better educate roaming users! Study roaming plans extensively
Choose packages according to intended period of stay and pattern of usages: volume-based or duration-based for data
Remember network setup
Know operating procedure of the handsets well and set up prior to landing
Select the right network for connections
Make sure the procedures completed.
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What home providers can do to help…
Should not charge unless and until the roaming customers accepts the provision of the service.
Should provide personalized tariff information
Should give examples for data roaming applications indicating approximate size
Should give notification when limit approached, and provide options to choose if continuation of services are specifically requested
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Local SIMs VoIP WiFi
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It might be better to stay off the net for a while!
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Thank you!!
Email: [email protected]
Twitter: @supott