I once built an amplified headset for a large call center operation. It had an on and off button that would used an attached modem to send the C and D tones to connect and disconnect the call. We were on track to build about 9000 units when they discovered the modems that would be on the line could not generate C & D tones.... arrgh...
From: Ken Hohhof Sent: Wednesday, May 20, 2015 5:37 PM To: [email protected] Subject: Re: [AFMUG] Voip analog handoff to PBX I don't think anyone even uses the touchtone "D" button, do you see it on your phone? -----Original Message----- From: Faisal Imtiaz Sent: Wednesday, May 20, 2015 5:56 PM To: [email protected] Subject: Re: [AFMUG] Voip analog handoff to PBX Is it possible that what you are hearing is a beep when another person is calling that line (Call waiting ?) Also, If you don't mind me asking.. Why are you doing pots to sip conversion ? why not just a straight sip trunk ? (i.e. sip origination ) Faisal Imtiaz Snappy Internet & Telecom 7266 SW 48 Street Miami, FL 33155 Tel: 305 663 5518 x 232 Help-desk: (305)663-5518 Option 2 or Email: [email protected] ----- Original Message ----- > From: "Nate Burke" <[email protected]> > To: "Animal Farm" <[email protected]> > Sent: Wednesday, May 20, 2015 5:24:44 PM > Subject: [AFMUG] Voip analog handoff to PBX > > I'm handing off 4 Analog lines to a PBX via a Grandstream GXW4004, and > it's having random cutouts in the audio. The packet stream shows that > it's having DTMF Events that are causing the cutouts, DTMF Tone 'D', so > I"m pretty sure that it's not actually caused by keypresses. I'm > guessing something between the ATA and the PBX there's an incompatibility. > > Is there another box quality wise to do 4 Analog lines before jumping > all the way into the Adtran TA904? > > Maybe something in like the $300 area? > > Nate > >
