Noise when answering

Posts: 24 · Vonage Forum Associate Joined: Nov 17, 2005 Posts: 24

If we pick up the phone before the third ring we are getting a noise associated with the caller ID (I think). Can this clicking be removed?

Posts: 1424 · Posted: Fri May 26, 2006 3:41 pm Post subject:

Does the phone support caller id? Is it cordless or corded?

Posts: 24 · Vonage Forum Associate Joined: Nov 17, 2005 Posts: 24

scerruti wrote:

Does the phone support caller id? Is it cordless or corded?

I have both corded and cordless phones and they all make the noise.And they all support CID

Posts: 1424 · Posted: Fri May 26, 2006 4:04 pm Post subject:

I am just guessing here, but I would assume that the adapter is supposed to cease generating a caller id message after the handset is picked up. What adapter are you using?

I was trying to figure out if the caller id information could be filtered out, for example on the handset cord of a corded telephone. Unfortunately it would probably require a lot of effort to accomplish.

I imagine you hear the same noise with your call waiting, I know I do.

The only suggestion I have is this, Vonage may be able to change where the caller id information is generated. It is supposed to be generated between the first and second rings.

Here is an older technical description of what is supposed to be happening: http://www.cpscom.com/techtips/wp_icwm.htm

Quote:

2) Caller ID on Call Waiting works the same as Standard Caller ID, but it also works when the phone line is being used (OFF-HOOK).

In this case, the telephone company produces two signals. The first is the audible Call Waiting Tone to alert the person on the phone that someone is calling. This is the same tone that is used with the basic Call Waiting Service. The second is the Caller ID Query otherwise known as the CPE Alerting Signal (CAS). This is a machine tone that only the Caller ID box recognizes.

In response to this query tone, the box sends an Acknowledge Tone back to the telephone company, which in turn responds with the Caller ID MDMF packet, as described above. If the telephone company does not see the Acknowledge Tone from the box, it does not send the Caller ID packet.

It appears that when Bellcore developed the specifications for Caller ID over Call Waiting, their main concern was accidental voice activation of the Query Tone.

Posts: 24 · Vonage Forum Associate Joined: Nov 17, 2005 Posts: 24

I use TI Linksys RTP300 Device - I have never noticed any noises with call waiting although I get very few incoming calls so it might very well be the same.