Plenty of business companies use free Asterisk software and place it on their server, thus creating a cut-rate IP-PBX. They use manuals provided on setting up the extensions, and occasionally there are lots of discrepancies. Finding out how to install a dial plan or call flow, the set of regulations detailing how the switch deals with inbound and outbound calls is very difficult.
Rendez Ltd delivers and supports IP based phone systems exclusively to business customers. We provide SIP Trunks as well as traditional PSTN call traffic and are able to offer these services nationwide.