All posts categorized voip

PLAYING WITH OLD CISCO® IP PHONES

PLAYING WITH OLD CISCO® IP PHONES

Cisco® IP phones are generally found everywhere in offices for the last nearly 20 years. As of this writing, there are several models that have reached their end of life and official support from Cisco®. One such model is the CP-7961G-GE which I was able to get on eBay for $15.99 with free shipping, so I purchased two of them. I also ended up purchasing the CP-7975G for $18 with free shipping. When purchased new these phones cost more than $200 to buy one.

This is going to be a series of posts in my adventures with these phones, with this being the introductory one. Several people have setup these end-of-life phones with Asterisk or FreePBX and I will be doing the same. In addition to that, I will try to get to the internals of the phone and understand the chipset and write applications that run on the phone.

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Posted on by Vikas N. Kumar.

SCREEN REPAIR OF SAMSUNG GALAXY S4

SCREEN REPAIR OF SAMSUNG GALAXY S4

A Samsung Galaxy S4 (and also S5) is a fantastic device to use as a cheap burner phone for one simple reason — a removable battery. It is also well supported with a LineageOS port. Someone gave me an old Samsung Galaxy S4 a few years back that had a damaged display, and I kept it thinking that one day I may need it. A few days ago I decided I wanted to fix that display so I could build a burner phone from scratch with a single messenger app like Session, which has a custom APK file that you can download on to your Android without a Google Play Store or even an F-Droid store. This can be very useful if you do not want Google apps or any other app besides a default browser on your device.

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Posted on by Vikas N. Kumar.

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