Galaxy S5 Limited Connection when on voice call?

[Anonymous]

I am finding that most of the time when I am using my S5 as a mobile hotspot the connection is trouble free, however when I get a voice call it promptly goes to 'limited' status. On closing the call it reverts back again (after a while) - is this a known issue?

It is a bit pisser if it is, as my old LG could do EVERYTHING at once. 😞

[Anonymous]

Hi

Ive not heard anything about this on blogs i read.

Phones will switch from a 4G connection to 3G or lower when a call comes in but it should return back to 4G {if thats the strongest signal available} soon after the call.

I cant tether so im not sure if the dynamics are the same.

[MI5]

Others have reported this and it seems to be a feature of O2 as it's across different phones......?
It maybe because the 3G connection hasn't got the bandwidth but could also be dropping to 2G ?

[viridis · Accepted solution]

What @MI5 said is correct. All 4g phones (at least on o2 possibly others) do this, the strongest signal will always sit dormant behind 4g and upon receiving a voice call the phones will switch to the strongest voice enabled network. Once the call has finished, it will reconnect to the 4g data stream until voice call switches it again.
In most cases the voice network is 3g, but sometimes the strongest signal is 2g and that will be the utilised network.
All phones do it, only more recent ones tell you.