I have a Huawei 659 with a landline phone connected to it.
I am looking for better range/speed/no dropouts.
Alot of what I see in here says if I upgrade,I will not be able to use my phone fromthe new modem/router.
Is it just that it needs a DSL connection or is there more.
I need a range of about 10metres,going through a few plasterboard walls.
You may check this article for some modem/router that you may choose.
If you still need the phone service, then you may consider getting a Mesh network or Access points.