WiFi calling dropped messages

todd moss

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Nov 30, 2013
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I have an AT&T branded LG G4 H810. At work the cell service is terrible. Therefore I put the phone into airplane mode and rely on WiFi calling for my service. Anytime I make a call or send a message it works flawless. But, I do not receive all my messages, and maybe even miss some calls. I Would say 50%of the messages aren't being delivered. I am able to open the Att.messages.net and see the messages are delivered to AT&T, but they are not being pushed to my phone. The ones that are not delivered, will show up after I have left and turned the 4G back on. Usually they will come all at once. Some of these are delayed as much as 8hours. Sometimes the push will not happen till after I have had good signal for up to an hour. As I mentioned earlier, the messages do appear on the Att.messages.net site immediately. The dropped messages are not related to the sender carrier. Messages originating from Senders straight talk, Verizon and AT&T both have had the same behavior. A co-worker who is also on AT&T has a Galaxy S7. He has also reported the missed calls and messages. For testing purposes I ran my phone in airplane mode with WiFi calling at home and also had messages not delivered. So I have ruled out the WiFi network at work. I have also used the stock messaging app as well as Textra with the same results. My phone is set to keep WiFi active while the phone is locked. Battery saver did not make a difference. It does seem the messages are more likely to come through if the phone is unlocked, but I have still have had failed ones In this state. Has anyone else experienced this? And ideas or suggestions?
 

corroded

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Sep 5, 2011
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Firstly, remember it is called WiFi CALLING... Not WiFi SMS/MMS

Messages can be of a couple of varieties... SMS, MMS, and Hangouts (Like..)

SMS, the classic messaging uses the TelCo's network ONLY to be transmitted. Unless you have a Google Voice Number you use for SMS, when you are on WiFi calling, it is only routing the calls, not necessarily the VM notifier or SMS.

MMS, are a newer for of messaging, still relies on the TelCo for most of the transmission but a modified part of the carrier... Questionable if you get this on Wifi Calling.

Hangouts, WhatsApp, and such are Internet based messaging.
 

corroded

Distinguished
Sep 5, 2011
197
0
18,660
24
Firstly, remember it is called WiFi CALLING... Not WiFi SMS/MMS

Messages can be of a couple of varieties... SMS, MMS, and Hangouts (Like..)

SMS, the classic messaging uses the TelCo's network ONLY to be transmitted. Unless you have a Google Voice Number you use for SMS, when you are on WiFi calling, it is only routing the calls, not necessarily the VM notifier or SMS.

MMS, are a newer for of messaging, still relies on the TelCo for most of the transmission but a modified part of the carrier... Questionable if you get this on Wifi Calling.

Hangouts, WhatsApp, and such are Internet based messaging.
 

todd moss

Honorable
Nov 30, 2013
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10,510
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There is also calls that are being dropped. I did some testing. Missed calls were not as easy to detect. Outbound calls, SMS, and MMS all work flawlessly while on WIFi calling. Inbound all three are sporadic. I have noticed they are more likely to come through if phone is awake and being used. But that also is not consistent. A friend has this same problem, different phone, same carrier. WiFi calling IS supposed to work for SMS and MMS. I put in a complaint with the engineeers at ATT. Still no improvement.

 
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