IP-PBX system can be used alone as a powerful call center or it can combine with TDM accessories, to make simultaneous use of network based (IP-Phone) and analog telephones possible. It can also provide continuous and uninterrupted network support using redundancy feature.

1 - Implementing Office series call centers

Features: capability of connecting urban and internal Analog lines with all the facilities of IP lines
Ideal for small spaces

2 - Implementing Enterprise series call centers alone

Features: possibility to connect to E1 and TDM convertors, the potential advantage of up to 10,000 subscribers

3 - Implementing Enterprise series with TDM converter

Features: capability of connecting urban and internal Analog lines, having all the facilities of IP lines as well as connecting to E1 with up to10, 000 numbers
IP Total up to 10,000 Numbers  and analog (internal and urban)

4 - Implementing Enterprise series with E1 converter

Features: capability of connecting urban and internal Analog lines , having all the facilities of  IP and  connecting to E1 lines
IP Total up to 10,000 Numbers  and analog (internal and urban)

5 - Implementing call centers in Redundancy Mode

In this case call center can be used without any geographical limitations.
If your devices stop working, support device starts solving the problem, without interrupting communication lines.