appcoders

Keybase proof

I hereby claim:

• I am appcoders on github.
• I am mrspockie (https://keybase.io/mrspockie) on keybase.
• I have a public key ASDEIPPmbydQ6Wd_thsT8iCn5h9kjMGrO_XgEPWhP9_T1Ao

To claim this, I am signing this object:

appcoders

#import <XCTest/XCTest.h>

@interface AsyncTestingPrimer : XCTestCase

@end

@implementation AsyncTestingPrimer

/*
 * This is how not to test async calls

appcoders

SIM Card Management Over GSM Modem

A small guide on how to send and receive USSD codes on Linux

I am using the built in GSM (UMTS) modem of my Thinkpad X1 extensively because I am often in places with flaky internet connections. I connect through the standard Network Manager on Ubuntu and everything works fine. There was one major annoyance though. Every time I wanted to top up the SIM balance or book a new package, I needed a phone to send and receive USSD codes. So I took some time to figure out how to do it from the shell. I wrote this down as a help for others and a reminder for myself. Without further ado...

First intsall gammu and picocom.

➜  ~  sudo apt-get install -y gammu picocom