Signal really bad - no help from Neotel!

We have been experiencing bad reception on and off since the beginning of November. The lines break up (like with a bad cell phone reception) and sometimes just cut off. No one at NEOTEL seems to know what the problem is. They say it is either a cracked cable from the switchboard to the plug - we changed this and it did nothing. We were told to contact Samsung who installed our PABX however we are getting the same problem with our HUAWEI wireless phones which are not linked to the switchboard at all! They have also said to contact Telkom but our Telkom lines are fine and they said no fault from their side. When we call NEOTEL they say there is nothing wrong and we get transferred from one department to the next with no-one bothering to look into it properly whereas for us it is a MASSIVE problem.<br> We have contacted another business in this area, who are also on NEOTEL, and they have been experiencing the same problems. So we fail to understand why our problem cannot be linked to NEOTEL as it can only be them.<br> We have phoned Neotel many times but they just put the onus on everybody else but themselves.<br>