I normally use AIS 3G/4G Lite Network ---- This morning, I noted on access to my phone (Galaxy J7), it had connected, through a ROAMING function, to AIS-T and told me I had the option of 2 networks. I tried to manually secure the phone to just the one network to no avail. On power recycle it defaulted to a roaming function with AIS-T.

 

Can anyone tell me what is going on here? The web site says something in Thai about TOT 3G???

 

Thank you in advance.

May be the have an agreement with TOT that they share the network in some areas. 

AS reported previously in another thread:

 

On 3/14/2017 at 7:14 AM, mtls2005 said:

On 3/13/2017 at 7:45 PM, Bob1million said:

Could Someone tell me what

AIS - T 3G means. Only seen this recently on my phone .....

http://www.nationmultimedia.com/news/business/corporate/30295872

 

http://www.nationmultimedia.com/news/business/corporate/30297251

 

I think AIS and TOT have agreed to a new, longer term roaming agreement as of last month (Feb.), which extends the previous short-term deal from just Bangkok to nationwide. So based on application/load/coverage/capabilities you may get handed off to the older TOT 3G/2100 MHz network.

 

AIS entered into contract with TOT to share tower and network equipment, allowing them to 'roam' in locations where each lacks the tower/signal coverage. Even though the phone indicates the device is 'roaming' there are no additional charges when using the network.

Thank you guys, that makes sense. Prior to yesterday I had excellent AIS reception, here at home in the rice paddies, and they have obviously just activated the TOT partnership here so now I have 5 bars on both with the option.