| Connection: | Proprietary SDK (connects to the HQ Server) | ![]() |
| Driver required: | Included | |
| Firewall ports required: | RPC (TCP 1024-65535) | |
| Firmware version required: (for new installations) |
9.1 or newer | |
| Other requirements: | TAPI Application Server (SKU30049) license required | |
| Directory download: | Extensions, groups, and trunks |