![](https://s3images.coroflot.com/user_files/individual_files/511720_gawdgkxhobqdpv60kxibpeuu6.jpg)
This is a rendering of a partial assembly of IPC'S exchange phone.
![](https://s3images.coroflot.com/user_files/individual_files/511720_yk_sj8vkoa3byxkpilytfjmhr.jpg)
The front housing of IPC's exchange phone, formed aluminum.
![](https://s3images.coroflot.com/user_files/individual_files/511720__tvax5n7vnczct5djtjln3dvc.jpg)
The exchange phone assembly with the circuitry in place.
![](https://s3images.coroflot.com/user_files/individual_files/511720_xpjj8tu8r309wpotqqar5yftb.jpg)
For CID this was the heart of the project, an elastomer button field. Not at all uncommon but I needed to prototype a functioning model in a month. Hard tooling was out of the question time wise. ARRK Creative Network made an STL for me then cast a urethane mold. They then poured a silicon rubber elastomer to produce the part. To make it functional they painted the simulated "carbon pills" with a carbon ink to make the electrically conductive. They delivered the button field to me in less than a week.
![](https://s3images.coroflot.com/user_files/individual_files/511720_523bdzhg_u5gpib3osd6fium_.jpg)
The Button Field assembly.
![](https://s3images.coroflot.com/user_files/individual_files/511720_jbniyhzj4q6ywbrk4xo_fzdld.jpg)
The Button Field assembled with stock dial pads and RJ35 receptacles.
![](https://s3images.coroflot.com/user_files/individual_files/511720_tlmgbjxqarlw7_kyj3fxma4jr.jpg)
The completed User Interface assembly
![](https://s3images.coroflot.com/user_files/individual_files/511720_f6ph0nxkb7rotd9ww7iimugst.jpg)
The finished IPC Exchange Phone prototype, delivered functioning and on time.
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