Doorking Cellular Adapter for Voice & Data
- Converts 1830 series phone system or controller from POTS to cellular
- Adapter is able to be used with older phone systems already installed in the field
- Adapter uses AT&T 4G LTE cellular service
- Requires monthly service from Doorking
- 2 year manufacturer warranty.
- Installation available upon Request.
*****Professional Installation required or Warranty may be voided*****