While I was afraid the wireless adapter would slow down communications and result in lag times during telephone use, this device did not introduce any problems... there is still a little lag time with this service... it is not significant or unusual for any VOIP. More important, the wireless adapter works and was connected easily. This allowed me to move my telephone "clutter" to another location and clean up my kitchen bar area, as i am no longer a "slave" to wired connections for my phone.
Note: I have installed a "relatively fast"/ recent technology wireless router, as my base for connections. Not top of the line, but not old technology either.
Highly recommend for those that want the flexibility of locating their phone system where they choose vs. where the wired connection happens to be located.