Can't say I recall seeing any free ones out there. I am partial to Wincall myself. I have found the below program on the web, but have not used it. Basically, the only free program found.

1. Free Billing Software
2. Free Software Billing

Pabx Billing Soft, free pabx billing soft software downloads.

Pabx Billing System and Hotel Management 4.4 rel 8

Publisher's description

From Quang Tran Hong :

A call accounting system which compatible with any PBX. 58 tel. bills for Pbx billing feature. Can short, filter, layout in many different ways, customize the header/footer of the report. 20 bills for hotels, supports hotel via RoomRack (room is row, date is column). Check-in/check-out/move can be done very easy on the cells of RoomRack. One bill for guest including the room sub-bill, telephone sub-bill and other kind of service sub-bill.

What's new in this version:

Shareware: You can try this program, but this version has some limited features or time usage restrictions. You should purchase it in order to remove those limits.

The Pabx Billing System and Hotel Management is a two part program that is great for any Hotel owner or accounting manager to efficiently and effectively manage and monitor the billing of PBX calls. The program will store information about telephone calls from the phone system in real-time for later analysis and billing.

The Private Automated Branch Exchange (PABX) system is a telephone system for business with multiple extensions and handsets, it connects the phone lines to the local exchange and the multiple installed handsets. Now, if you have these installed in a Hotel System where guests uses the phones, the Pabx Billing System and Hotel Management will help you to associate the bills.

The Pabx Billing System and Hotel Management is very customizable where you can decide the layout that you want and the header and footer for the generated reports.

- A Call Accoungting System which is compatible with any PBX. The call detail record (CDR) can be programmed after installation and multiple CDR format can be used at the same time.

- Support both Serial interface and IP interface to Pbx.

- Support any call charge scheme and multiple call charge schemes (one per each telephone service provider).

- Export/import interface for CDR, connector for other application to retrieve telephone charge information for other purpose.

- 54 Tel.Bills for Pabx Billing feature (depend on your particular settings, the bills displayed on screeen may be less). You can short, filter, layout in many different ways or customize the header/footer of the report. You can schedule to automatically make and send bill via email.

- 12 bills for Hotels, support Hotel via RoomRack (Room is row, Date is column). Check-in/Check-out/Move can be done very easy by using the mouse to select the cells on RoomRack. One bill for guest including the room sub-bill, telephone sub-bill and other kind of service sub-bill.

- Online context-sensitive help, document in detail.

'Jason Piercey' wrote in message news:416d82d0$1_1@newsprd01. Can anyone > help? Autocad 2004 crack. Great.thanks.knew it was somewhere easy.

- More than 550 enterprises and hotels are using. Free for customer has less than 14 Extensions or Hotel with less than 6 Rooms.

- Soft interface to integrate with other software is provided free of charge for valued dealer.

System Requirements:

Preinstalled one of Ms Access 2000, Ms Access 2002, Ms Access 2003

Free Billing Software

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Free Software Billing