reply to post by DeadSeraph
i'm not too deep into the technical stuff regarding cell phones, but this happened to me a few times too, when i used a GSM phone.
Not exactly like described always having a messed up conversation right from start, but often when i entered an area with significant, but not
ultimate loss in signal strenght (so i guess)
for example i'm used to phone in a 20 story building with a GSM megacell station right on the roof, operated by the same provider i have subscribed
As a matter of fact the signal strength directly below the antenna is a tricky issue. The buildings superstructure transports the HF signal a good
portion, but below the 2nd story the signal becomes somewhat weakened or subject to modifications, reflections and whatever else.
So sometimes when i below 2nd floor i'm used to have this sort of alien talk too.
Lets try to shed some light into the details (as i think they work):
Once having a connection established it basically means that you have not a standard voice line like in good old times with your old-fashioned phone
anymore, but an encrypted data-connection established.
The analog pendant of a wireless phone would start becoming messed up with noise. The weaker the signal the more intense the noise you can hear.
Loss of signal GSM-style means the data-transmission gets faulty and phone and station you are booked into start making use of extra-bits within your
signal trying to replace faulty bits in the transmission.
We call that an error-correction algorithm.
Aside with the voice-data phone and station exchange telemetry about the connection itself, in a way that the GSM-phone can actively try to send with
higher power, or changes station if possible (handover)
all this happens without you knowing, and you not even get aware if a handover to another station takes place.
Its my personal believe, that this connection-control data has more bits in its error-correction than the voice data, and could possibly get better
and more efficently restored than the voice data.
As a result you do a call in an area with weak signal. Your phone bahaves like normal, except the voice is digitally messed up and sounds VERY alien,
because the error correction could not restore it to a point you would hear it as normal voice.
The control-data may still run fine, and must run fine since keeping the connection is more important as its content, from technical viewpoint.
In this scenario the loss of voice-data happens at the location of just ONE of both involved phones, and while you mentioned your girfriend is using
an iphone .. uhm... the iphone has been in the media for having a faulty antenna, so its much likely that your girlfriend is going to have alien
conversations more often than you.
maybe its helpful to change provider or phone ?
As i said i do have conversations like that often. which once let me change my provider which has its station on another roof, thus granting a better
coverage of the building i hop around in.