Richard, The thing that you need to be aware of is a value on the bottom of each phone labeled REN. This stands for Ringer Equivalence Number. An REN of 1 is equal to a single old-fashioned analogue telephone (the ones with the mechanical ringers in them). Modern electronic phones have an REN of 0.3 typically.
On a normal home line, the supported REN is 5. This is the total REN for all the devices. So, you might have the following sets: REN Type of set 1.0 Grandma's old Bell 0.3 Cordless phone 0.3 Snoopy phone 0.3 Answering machine You add up the total REN, which in this case would be 1.9. As long as that total is less than 5, your home like should suppport them. What you need to find out is what REN is acceptable to the ATA. Add up the REN on all your phones (read the label on the back), and just make sure that is less than what the ATA supports. If you have too many sets, you are not likely to burn anything out. What is more likely to happen is that your ringers will not work, or they will sound really strange. With electronic sets (i.e. donate granny's old phone to a museum), you should have no problem. Jim > -----Original Message----- > From: Richard (Rogers @ work) [mailto:[EMAIL PROTECTED] > Sent: February 12, 2007 2:12 PM > To: [email protected] > Subject: [on-asterisk] Multiple analogue phones per ATA adaptor > > I am trying to get some ATA adaptors for my existing analogue > phones and wonder if how many analogue phones (connected in > parallel) I can connect to one of these adaptors. > e.g., Linksys SPA-1001 or other similar ones. Currently, I > have 3-4 phones connected to my analogie bell line - so all > phones in the house ring when there is an incoming calls. > > I wonder if connecting muliple phones to one ATA might blow it up? > > Thanks, > Richard >
