Dual number SIM issues

[qbicdesign]

Before I start explaining the problem, note that I'm talking about SIM cards that have two numbers, not phones that have two SIMs.

I just bought a Nexus 4, which I love upgraded to Android 4.4.4. My phone provider offers dual number SIM cards, which allow you to assign both work number and personal number to one SIM card. Sounded very convenient, so I went for it.

Here's the problems:
1) If I get an incoming call I can't see which number they called to. This makes it impossible to filter work related calls.
2) If I call out, there's no option to choose which number to call out on. The only way to switch number is using android's SIM Toolkit, but that switches the number globally, for data, calls and SMS.

Does anyone know of any apps which might be able to help alleviate these problems?

 

[mikedt]

This is something that's done by the carrier itself, entirely within their systems. So I don't think what you require could be done with just by installing an app. The carrier would have to provide some means of signalling to the app, to tell it what's going on, e.g. which number an incoming phone call is on. The phone itself doesn't even know it's got two phone numbers assigned to your account, apart from the SIM toolkit, and that sends a code to the carrier to choose either number A or number B, and the carrier just switches everything globally over to either number A or number B, outgoing phone calls, SMS, and data. The phone itself only has the IMEI/ESN and the SIM's unique IMSI(International Mobile Subscriber Identity), which tells the carrier this is you.

On the other hand if you did have a dual-SIM phone and two SIMs from your carrier on your account, which is quite common here in China, that would be easy, you could do everything you require with that.