I am a noob to telephony. I tried to find info with regards to using Asterisk over long distances.
Background: There is an office in the USA and in the Netherlands and I want to setup Asterisk such that all phones in the US office and Dutch office are just extensions of one another.
The US office has 2 PTSN comming in and 1 ADSL 768kbps down, 384kbps up. It will be similar in the Netherlands.
Note: The ADSL is also used for other Internet traffic (email, web, ssh, dns, etc.). Thus I would probably want/need some sort of traffic shaping. What has been others experiences with traffic shaping (using Linux) and VOIP? Any cavaets?
Would I have good sound quality and how many concurrent connections could I achieve through the ADSL with reasonable sound quality? Any recommendations?