Just received a call and dropped it - tried to call back but get connection error

Hi. Just received a call from the number (08) 7805 2701 on 10/05/2010 at 10:22. I couldn't answer it cause I was driving. I tried to call it back from my MTN number but it says "Connection Error" and makes a funny beeping sound. I then tried to call it from my landline but it's constantly engaged. So frustrating!!!

Why should i comment if im not getting any help... I;ve comment before but im getting the same call from 087 number, so how is my comment helping me... I need to stop them and im not sure on what to do now cos

A person called looking for my son saying he was from the JHB traffic dept. When I asked waht it was in connection with he refused to give me any info. I then refused him any info. Is this really JHB traffic dept or a hoax.

This is a wireless number probably supported by Neotel. I got the call from Nissan SA.

I get on average 6 calls a day from this number on my work landline number, looking for someone who used to work at the company a year ago. I tell them the person has resigned  a year ago and to stop calling but they continue to do so several times every day. It is so annoying and disturbing.