I see 2 jacks is one of the jacks Line in and the other used to plug in a telephone?
73914
You are correct. Plug in the USB port, then plug into line in, and add the telephone, if you want to. I do not use it. I just use the line in for dialing services and my phone is accessing the line from another port.
73915
You are correct; one is for the telephone line from the wall and the other is for the telephone receiver at the desk. In my case the receiver on the desk is the master station for seven cordless handsets in seven locations in the house, so the whole house is covered.
73916
this did not work for me. It sits, behind the desk, against the wall, doing nothing.
26504
It uses both and as far as the av jacks it's a male and female plug so you can plug your original av plugs into the headset.
2138016
It has 3 jacks: line in, line out and earphone. They are right on the right side as you look at the radio. Hope this helps.
643324
There is a cord that plugs into the phone and the other end plugs into your phone jack.
2278559
Hello Kelly, I bought this item (and returned it) because I thought it was a telephone. It is not a phone, it is a handset...you may have realized this, I did not. If I recall, it was a very simple piece of equipment and would probably not have had a jack...
6180
has a line in jack. dont know if you can plug in headphones but i sent the unit back asap cause its garbage. do not buy. read the reviews, im in there as toni as well as other unhappy people.
84519
It has a power line that plugs into a typical phone jack for a landline, in my case fiber optic.
451313
There are 2 ports on the adapter. Each port supports 1 line. For example you could connect the phone line to a base station for a set of wireless phones, or to an existing outlet in the house (note: if you connect to a outlet in the house, make sure you disconnect the phone line coming in from the street. I hear this can zap out the adapter). I have been using this for several years and am very happy with it's performance.
2243005
there is a jack on each phone. I really don't know if it is a 2.5mm or not and don't care. They are good phones.
1393410
Just a regular phone jack. I really like the phone but it's a lightweight little secondary phone. My only complaint would be it's made of light plastic. From the distance it looks authentic, close up you can see it's a fairly cheap lightweight phone.
2162169
This is a splitter for a single telephone line where you can use two devices. If you connect two more splitters and connect them to the original splitter, you could then use four devices on one phone line.
1023014
the line jack provides the power for dial tone and calls. The batter provides the power for the display and speakerphone.
1023853
This is a simple on/off switch for a phone line. Much like the a wall switch for an electrical outlet. The phone line from the wall plugs into the little box and what ever is plugged into the box's other jack will either get the phone signal or not, depending on the position of the switch. You can use the switch, or multiple switches, to do interesting things. However you could NOT use it to switch the phone signal between a phone and a fax without getting creative. For that you would need an A/B switch. So I"m not sure what your really are wanting to do. If you can describe it with a more detail I'll be glad to help.- Marc This is a simple on/off switch for a phone line. Much like the a wall switch for an electrical outlet. The phone line from the wall plugs into the little box and what ever is plugged into the box's other jack will either get the phone signal or not, depending on the position of the switch. You can use the switch, or multiple switches, to do interesting things. However you could NOT use it to switch the phone signal between a phone and a fax without getting creative. For that you would need an A/B switch. So I"m not sure what your really are wanting to do. If you... » Read More This is a simple on/off switch for a phone line. Much like the a wall switch for an electrical outlet. The phone line from the wall plugs into the little box and what ever is plugged into the box's other jack will either get the phone signal or not, depending on the position of the switch. You can use the switch, or multiple switches, to do interesting things. However you could NOT use it to switch the phone signal between a phone and a fax without getting creative. For that you would need an A/B switch. So I"m not sure what your really are wanting to do. If you can describe it with a more detail I'll be glad to help.- Marc « Show Less
1697227
probably for audio in but not audio out. There are 2 jacks, one input, one output.
2000661
If there's only one jack I don't see how you are going to hook up to the board. I also don't see how it will work with a phones/output jack.
848969
yes there is I've never used it but there is a jack labeled line input on the back
996177
It has two input r45 jacks. One is two line (1&2) and the other is line 2 only.