Telephone Spammers

Started by Jim Thompson in sci.electronics.basics4 years ago 9 replies

I just experienced a telephone spammer who sent my own telephone number as the CID! Anyone else experienced that? Since I use Ooma, I...

I just experienced a telephone spammer who sent my own telephone number as the CID! Anyone else experienced that? Since I use Ooma, I wonder if I can't simply blacklist my own number? I'll ask support. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | ...


Telephone question

Started by Jim Thompson in sci.electronics.basics3 years ago 18 replies

Anyone have a clever solution to this problem... I have a one-line telephone, but two telephone lines in the house. Is there some way,...

Anyone have a clever solution to this problem... I have a one-line telephone, but two telephone lines in the house. Is there some way, perhaps with relays to recognize which line is ringing and have the one-line phone connected to the ringing line? (It's a honey-do problem... you know... "pretty phone, don't throw it away" :-) ...Jim Thompson...


Telephone Advisory

Started by Jim Thompson in sci.electronics.basics2 years ago 1 reply

Telephone Advisory... When I am out of the office my calls automatically roll to my cellphone. If I am in a meeting and have my cellphone...

Telephone Advisory... When I am out of the office my calls automatically roll to my cellphone. If I am in a meeting and have my cellphone "quieted", call divert into the cellphone's voice-mail, which answers with a number you didn't dial... don't panic, leave a message. A caller from the Netherlands this morning hung up on the voice-mail. Please call again ;-) ...


Switching on a PC over the telephone line

Started by nikos in sci.electronics.basics6 years ago 45 replies

I am trying to find a circuit that I will be able to switch on my PC that is 200 klm away (like pressing the switch toggle button remotely)....

I am trying to find a circuit that I will be able to switch on my PC that is 200 klm away (like pressing the switch toggle button remotely). Does anybody has an idea ? Thank you in advance Nikos


Telephone parts?

Started by Ivan Vegvary in sci.electronics.basics5 years ago 5 replies

One of the discounters in Portland is selling "slim-line" phones (land line, brand new) for $ 2.50 each. Is this a bargain for parts? Anything...

One of the discounters in Portland is selling "slim-line" phones (land line, brand new) for $ 2.50 each. Is this a bargain for parts? Anything fun and usable inside? Thanks Ivan Vegvary


Question on phone cord connectors

Started by Dave in sci.electronics.basics9 years ago 12 replies

If the connector for the phone line coming from the wall is an RJ-11, what connector is used for the coiled cord connecting the handset to the...

If the connector for the phone line coming from the wall is an RJ-11, what connector is used for the coiled cord connecting the handset to the telephone? It seems a little smaller. Any help is appreciated... Thanks, Dave


RS485 Why the limit of 32?

Started by Anthony Fremont in sci.electronics.basics11 years ago 10 replies

I've implemented a few different serial protocols, but never set up an RS485 network. I have several home automation do-dads that need to talk...

I've implemented a few different serial protocols, but never set up an RS485 network. I have several home automation do-dads that need to talk to each other from different parts of the house. I'm thinking of implementing a half-duplex 485 bus on an unused pair of the telephone cabling. Any non-obvious gotchas? I've noticed that many transceivers specify a maximum of 32 nodes on the ...


Phone in use circuit not working

Started by steve in sci.electronics.basics5 years ago 46 replies

I tested and built the following circuit. http://www.circuitstoday.com/telephone-in-use-indicator It all worked fine untill I tried to test...

I tested and built the following circuit. http://www.circuitstoday.com/telephone-in-use-indicator It all worked fine untill I tried to test it by calling into my phone. (the one test I didnt do before I soldered it all together) What happens is taht the phone rings for a about 1/2 a ring then stops ringing. To my surprise when I life the phone up the line is alive eg. Its like the devic...