Depending on the used phone type, there are differences in the operation and programming of the PBX. The following phones can be operated at the PBX:

If you are already in a call state with another subscriber (internal or external), you have to press the Flash key (signal key, R key) first on a DTMF phone before dialling a digit, e.g. for a call transfer.

Due to the difficulties concerning the transferring with PD phones, this function is not available for this kind of phones. If your phone offers both dialling modes, you should therefore set it to DTMF.

On some analogue DTMF phones, specific T-Net functions can be performed in the analogue T-Net via the menu or via specific function keys. If you are operating such a phone as an internal subscriber, you can also use these comfortable operating modes for some functions of the PBX. Please note that the T-Net functions of the phone are limited because the PBX doesn‘t support some functions. If you want to use the T-Net functions of your phone, read the manual for the phone. When entering phone numbers, take care to enter the leading exchange line access number. Instead of an "announcement of the public exchange", you will hear the confirmation tone for successful programming.

To be able to operate your ISDN phone, you have to make yourself acquainted with its functions. To do this, read the manual for the phone. It is vital to know which key (e.g. hold or R key or menu you have to use to initiate a query call. To use some functions, you have to rely completely on the menus/keys of the phone (see notes). The digits to be dialled for analogue phones are not required here.

As described in this manual, you can use the major part of the PBX functions with all connected phones. With the system phones, the operation is more comfortable, since the most important functions can be controlled via a menu/function key (optional). In this case, the operation is described in the manual. Some of the PBX functions described can only be used on the system phones specified in the description.

On some standard VoIP phones, functions such as Double appel, Conference, Query calling, and Hold are not carried out via the PBX, but rather on the phone itself. Therefore, the instructions for operating these functions may deviate from the descriptions in this guide. For more information on this, read the manual for the phone.

Normally, pressing the pound key # on a standard VoIP phone initiates a dialling procedure. Since this key is required for numerous functions, as well as for all settings (programming), using the pound key for these actions is not possible on most standard VoIP phones. For more information on this, read the manual for the phone.