I have been doing some international roaming in past few years, and have consistently noticed data issues in asian cities where there was plenty of coverage. Currently, i am in one of the biggest cities in India (Bangalore) and the following issues were noticed in the heart of the city where the signal is high.
- To start with, on T-mobile website if you search of india roaming, it shows a coverage map in various parts of india. Surprisingly, in the Technology center of India (city Bangalore), the map shows no 3G, whereas small cities elsewhere show there is a 3G coverage. Does it make sense to provide 2G in the fastest growing city of India and provide 3G in small cities that are not even metropolitans ? Indeed, i am getting only 2G speeds in this city.
- Even those 2G speeds in Bangalore, and slower than what one would expect as 2G speed. As proof, i ran speed test 4 different times using 4 different servers in nearby servers in Bangalore and took screen shots. The screen shots are attached in this message, and consistently the latency was over 500 ms and jitter was over 50 - this has been shown in one of the screenshots. In all the 4 tests, the download capped at 0.12 Mbps which is much lower than a 2G speed (I can provide research data submitted in an internet article, explaining the 2G speeds in indian telecoms, which shows that the 2G has to be well over what is shown in screenshot /tests).
- To discuss this problem, i called the number that is listed in "T-mobile international roaming" webpages. The webpage says that i can call +1-505-998-3793 free of charge, while one is roaming. But when i tried this number 3 different times, i was given options to "choose to talk to an operator" and after punching in some options, the system dropped my call every time. Why is this happening ?
- My final question : If i log into my-Tmobile.com and choose the "CALL ME" option listed at top of that page, will i get charged when i receive a call from T-mobile customer service ? (My understanding is that i will be charged 0.25 cents for incoming calls while i am roaming in india with my Tmobile One plan). Every incoming and outgoing calls were charged while i was roaming here last time.
Approaching Vodofone customer service (the indian partner that shows up in my roaming phone at Bangalore) will be useless for these speed issues. Hopefully someone in technical support of T-mobile will see this fast enough for me to use my phone while i am here for next 2 weeks.