I have been experiencing Internet drops whenever I receive (or make) phone calls from the land line. Simply put, the ADSL and Internet lights on the modem goes out and takes some time to start up again (or I have to do a hard reset of the modem).

This isn't the first time I have experienced this. I have raised this with Slingshot customer service as well. At first I thought it could be the phone, it was quite old (6 years) so I went and bought a new cordless phone set (cordless system with 2 extra head sets). It didn't solve the problem. I went and got a new modem as well (TP Link; previously was using a Linksys WAG 120N). The new modem also came with a new ADSL filter, so connected that up for the cordless landline. 

I have recently moved into this new house (since June). The previous owners installed a master splitter so there is only one ADSL jack point and there are 2 phone jack points and the phone is connected to one of them. There is nothing connected to the 2nd phone jack.

I have also previously have had numerous drops of my Internet connection. I initially thought that the wiring in the house could have been causing it (bad master splitter maybe?) But since I put the new filter for the phone, the number of internet drops have certainly decreased, but there are still enough to annoy one. I have called up Slingshot a number of times and have reported this as well.

Has anyone else using Slingshot experienced this issue where their Internet connection drops out when they receive a phone call on their landline (or make a call)? Any ideas what could be causing such an issue?