Product

Line Side
Caller ID

Device Side
Caller ID

DSL Compatible

Call Waiting

Voice Mail and Call Forwarding

Distinctive Ring

Power Off Behavior

ATX-250

Yes

Yes with Custom Chip,  enabled by DIP Switch 5

Yes

Yes

Busy Messages only.

Yes, DIP Switch Controlled

All ports ring in parallel when unit is powered off.

ATX-300

Yes with option enabled

No

Yes

Yes

Busy Messages only.

No

All ports ring in parallel when unit is powered off.

ACP Series

Yes with option enabled

No

Yes

Yes

Busy Messages only.

No

Rings through Device 1 when unit is powered off.

STICK

Yes, with Rings To Answer set to 2

Yes, With Rings To Answer set to 2

Yes

Yes

Busy Messages only.

No

Rings through V1 & V2 when unit is powered off.

STICK II

Yes, with Rings To Answer set to 2. Separate line control

Yes, with Rings To Answer set to 2 and not suppressed. Separate line control

Yes

Yes

Busy Messages only.

No

Rings through V1 or V2 for respective line when unit is powered off.

SR-2

Yes on all ring patterns.

Yes, but only on the Device 2 port. Would need the voice number designated as the Distinctive Ring (double ring) number.

Yes

Yes

Yes

Yes

All ports ring in parallel when unit is powered off.

SR-3

Yes on all ring patterns.

Yes, but only on the Device 2 port if 2/3 switch in 2 position and would work on double (and triple, if present)  ring pattern number(s). If switch is in position 3, it would only work for Device 3 on a triple ring pattern number.

Yes

Yes

Yes

Yes

All ports ring in parallel when unit is powered off.

LINE HUNTER

Yes on all ring patterns on each respective line.

No

Yes

Yes

Yes

Yes

No ring through to any ports when unit is powered off.

POWER STONE

Yes

Yes

Yes

Yes

Conditional upon settings of Rings to Answer and Distinctive Ring control.

Yes,
Program Option

Rings through to device port until answered by device or the unit itself.