Looking to setup a VOIP for my home office. Initially have set up with the 3CX software and an account with VOIPON in the uk. We only have two extensions and make very few calls (2-3 per day in/out). We're using Cisco 7940 phones. Our location is at the end of ADSL coverage - we currently only achieve about 750Kbs.
The system is working great internally between the two extensions but external call quality is poor (dropping bits of the conversation). Is this due to the provider or our adsl speed? We don't use the adsl line for much browsing - only emails so for the majority of the time there is no real overhead on the connection. From what I can gleam from google we need about 100kbs per line so I thought we would be ok.
Am I trying to achieve something that's not possible? Are there 'business class' voip providers that supply improved call quality? Would a hosted solution help or make it worse? Not sure I have no experience of VOIP and could do with some advice.
Any advice would be much appreciated.