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Echo on calls from landline to mobile |
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#1 |
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Forum Member
Join Date: Oct 2005
Posts: 2
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Echo on calls from landline to mobile
I have been troubled for some time by echo when using my mobile to answer calls from several landlines.
I use a Samsung S5 (SM-G900F) running Android 4.4.2. The problem arises with incoming calls from landlines. I hear an echo of my voice when I speak. The landline person does not hear any echo. I have just tested this with calls to and from three landlines on different rural exchanges involving six handsets of different types at the landline end. When I call the landline, there is no echo. When the same handset calls me, i hear an echo of my voice when i speak. Can anyone please tell me what is going on and how we might address this problem. Thanks David |
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#2 |
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Forum Member
Join Date: Oct 2005
Posts: 2
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Am I really the only person seeing this problem?
I answer a call to my mobile from a land line in this rural area and every time I speak I hear an echo of my voice. Any ideas anyone? |
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#3 |
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Forum Member
Join Date: Sep 2011
Location: Ballymena
Posts: 237
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Any comments I have heard of echos is usually from people using O2 or with the earpiece volume on their handset turned up to the maximum.
Another possibility is using a case on your handset, does that apply? |
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#4 |
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Forum Member
Join Date: Dec 2004
Location: Woore, Cheshire/Shropshire
Posts: 1,675
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I used to hear this a few years ago on occasions, I was on O2 back then
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#5 |
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Forum Member
Join Date: May 2004
Location: Reading
Posts: 27,905
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It could be the way the mobile and landline networks are interfaced. In mobile networks the audio from A to B is totally separate from the audio from B to A. So end B hears only A and end A hears only B
On a landline phone however A to B and B to A are mixed together on the same pair of wires. So both ends hear A + B (with no processing to try and separate A and B that is) So it is quite possible that with no signal processing that when you call a landline what comes back to you is a mix of both you and the person you are calling. ie you get A + B because the two signals are present on the landline at the same time. The interface kit though should be able to do A + B - A to cancel out the A (you) signal to leave B, the person you are calling. But the cancellation might not be perfect so you get a bit of A coming back. Which due to the delays in the mobile network will sound like an echo. Quite why it should make a difference based on who calls who is another matter though. |
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#6 |
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Forum Member
Join Date: Sep 2005
Location: Norfolkland
Posts: 1,787
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Quote:
I used to hear this a few years ago on occasions, I was on O2 back then
Quote:
I have been troubled for some time by echo when using my mobile to answer calls from several landlines.
I use a Samsung S5 (SM-G900F) running Android 4.4.2. The problem arises with incoming calls from landlines. I hear an echo of my voice when I speak. The landline person does not hear any echo. I have just tested this with calls to and from three landlines on different rural exchanges involving six handsets of different types at the landline end. When I call the landline, there is no echo. When the same handset calls me, i hear an echo of my voice when i speak. Can anyone please tell me what is going on and how we might address this problem. Thanks David |
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#7 |
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Inactive Member
Join Date: Apr 2014
Posts: 239
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Just tested this on a voda sim and mobile by sainsburys sim (runs on vodafone) Both have the echo problem and sometimes missed calls this is connteced via 2g to a older base station which has microwave backhaul , Quote:
I have been troubled for some time by echo when using my mobile to answer calls from several landlines.
I use a Samsung S5 (SM-G900F) running Android 4.4.2. The problem arises with incoming calls from landlines. I hear an echo of my voice when I speak. The landline person does not hear any echo. I have just tested this with calls to and from three landlines on different rural exchanges involving six handsets of different types at the landline end. When I call the landline, there is no echo. When the same handset calls me, i hear an echo of my voice when i speak. Can anyone please tell me what is going on and how we might address this problem. Thanks David |
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