Roaming v2


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My presentation at a seminar by Telecommunications Consumer Institute, office of NBTC.

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Roaming v2

  1. 1. Seminar with TCIJune 16, 2011Supot TiarawutTRIDI
  2. 2. Roaming in Wireless Networks, Shahid K. Siddiqui, McGraw-Hill 2
  3. 3.  PLMN – Public Land Mobile Network = a mobile network = wireless equivalent of PSTN VPLMN – Visiting PLMN HPLMN – Home PLMN 3
  4. 4. Roaming in Wireless Networks, Shahid K. Siddiqui, McGraw-Hill 4
  5. 5.  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> 5
  6. 6. Roaming in Wireless Networks, Shahid K. Siddiqui, McGraw-Hill 6
  7. 7. Roaming in Wireless Networks, Shahid K. Siddiqui, McGraw-Hill 7
  8. 8. Roaming in Wireless Networks, Shahid K. Siddiqui, McGraw-Hill 8
  9. 9.  More complicated Real time credit deduct Charging signals between visiting network and home network 9
  10. 10.  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. 10
  11. 11.  REGULATION (EC) No 544/2009 Control ceiling of wholesale charge by visiting networks Control ceiling of retail charge by home networks 11
  12. 12.  EU can do it because EU government has control over European Countries. THAILAND: we don’t have control over networks of other countries 12
  13. 13.  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 13
  14. 14.  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. 14
  15. 15.  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 15
  16. 16.  Local SIMs VoIP WiFi 16
  17. 17. It might be better to stay off the net for a while! Thank you!! Email: Twitter: @supott 17