For several years, our organization's campus has had a cable internet connection from Unitymedia and two ISDN connections from Telekom—one for the administration and one for the conference center. The internet connection and internal network was handled by a ZyXEL ZyWALL 310 unit. The phone system was handled by an Askozia appliance with a built-in beroNet card for the ISDN channels, and last year this appliance was upgraded to 3CX. Support for ISDN is ending, and I have purchased a Lancom 1906VA to handle all three connections at the edge of our network. The ZyWALL does not handle voice traffic at all well, I find. The Lancom configuration and user interfaces are so different from those of the ZyWALL that I have not yet adjusted, which is why I need your help.
One of our Telekom connections has already been converted to All-IP, and this connection is temporarily being handled by a Digitalisierungsbox Basic with a single ISDN connection to the PBX. However, we are able to use only 2 of the 4 channels available to the account. 3CX makes an internal SIP connection to the beroNet card and ISDN modules.
Here is our environment as it will be:
Internet:
- 1x Unitymedia Business Internet, 600 down / 40 up, over Hitron CGNV4-EU modem
- 1x Telekom DeutschlandLAN SIP-Trunk, 16 down / 2.5 up, 4 voice channels, 300-number block (administration)
- 1x Telekom DeutschlandLAN SIP-Trunk, 16 down / 2.5 up, 4 voice channels, 70-number block (conference center)
- Hardware: Askozia appliance, Intel Celeron 1.99 GHz, 4 GB RAM, 512 GB SSD, 1x Gigabit Ethernet, 2x beroNet bf4S0 modules
- Software: 3CX Professional, v.16.0.910, 8 simultaneous calls
- Can be virtualized after conversion to All-IP is complete
- 85+ Snom desk phones: D375, 715, 710 and 320 models
- 15+ Snom DECT phones: 5 m700 base stations; m65, m25 handsets
- I do not wish to use the Telekom connections as backup for the internet connection; they should be used only for the SIP-Trunk connections.
- If possible, I would like for the 1906VA to handle both the DSL and the SIP-Trunk connections, but pass all calls to 3CX.
- If possible, I would like for 3CX to make a local SIP connection to the 1906VA, similar to what it does now with the beroNet card.
I hope that I have provided enough information to allow you to make suggestions and give advice. This project is my priority now, so I am ready and happy to provide additional information when needed. I would like to have a stable system that isn't complicated to manage! Many thanks!