A 4 line cordless telephone doesnâ€™t exist. What we think you are looking for is a cordless telephone which sits off a PABX which has 4 lines. This being the case then the OfficeServ 7030 is the switch you need. It can grow to accommodate up to 8 channels and 20 assorted extensions, these can include multiple cordless-telephones.
4 line cordless telephones can be a standard DECT which has a single base unit and can be programmed have calls forwarded from a phone extension if this isnâ€™t answered, this is ok in a contained area, however if the business premises are a â€˜sprawling siteâ€™ perhaps in different buildings then we have to thinking about integral D-E-C-T, which is the same principal bet instead of one it has several base-units strategically placed, transferring signal from each other when in or out of range.