Sound connectivity between mobile phone and computer

Cerrado Publicado Apr 25, 2005 Pagado a la entrega
Cerrado Pagado a la entrega

I want to use my mobile phone for computer telephony. I need to connect a sound input/output from Siemens S45 mobile phone to line-out/line-in on sound card of my PC computer. This connection has to work together with data cable connection and power charging connection at the same time. I tried to solder wires from wall charger together with serial data cable and headset to one connector. When I connected it to mobile phone charging worked OK, headset worked OK but serial data cable didn't work. Mobile phone showed that it switched to a different software profile. This profile supports headset but doesn't support serial data cable at the same time. I wonder if it is possible to reprogram the phone so it can support both data cable and headset cable. May be it is not possible due to hardware limitations. I also tried to solder wires directly to speaker contacts on mobile phone motherboard. But mobile phone switches itself off in a few seconds after it receives a call. Perhaps there is a kind of signaling protection in the phone that switches the phone off. Another problem is how to connect PC sound card line-out with mobile phone microphone input (mobile phone doesn't have line-in sound input). I think there should be a signal reduction implemented because line-out signal is 1 Volt and microphone signal input is 10 miliVolt. The sound connectivity has to be also clear and without any static noise.

## Deliverables

The seller has to provide complete working solution for sound connectivity between Siemens S45 mobile phone and sound card on PC computer. This connection has to work together with data cable and charging connection at the same time.

## Platform

Siemens S45 mobile phone

<[url removed, login to view],2241,hq_en_0_21219_rArNrNrNrN_prodId%3A15780,[url removed, login to view]>

IBM compatible PC computer with a sound card

OS Windows 2000

Servicios de audio Electrónica Software integrado Ingeniería Microsoft MySQL PHP Arquitectura de software Verificación de software Windows Desktop

Nº del proyecto: #3682541

Sobre el proyecto

Proyecto remoto Activo May 16, 2005