I have had VoIP been running satisfactorily some months, and I now wish to migrate my landline to VoIP.
For elegant redundancy I am thinking of having two VoIP services from two different suppliers.
I currently have an analogue telephone adapter which only has one FXS port. I am inclined to simply leave the existing setup in place, and install a ATA working in parallel with the existing ATA for the second VoIP service..
It is suggested however that I should buy an ATA with two or more ports to service both the existing VoIP and the migrated landline. I like this proposal for "future-proofing", even if I only use one port in the immediate future.
Some suppliers recommend the Grandstream HT802 or HT 812, whilst I have also been strongly recommended to choose from the Cisco SPA 112 or SPA 122. Advice from those with experience would be much appreciated.
The other issue is how to connect two ATAs to my 'phone system, which is a Gigaset Go-Box 100 base station, serving a number of SL450H handsets. This base station is stated to be multi-line capable for up to 6 handsets and a number of parallel calls (1 landline + VoIPs).
I have not been able to configure the Go-Box 100 to handle both the land line & a single VoIP line & would appreciate help in this respect please.