DUAL SIM FOR WHAT???

[xra7en]

I have yet to understand what dual sim is for

PART A
What I THOUGHT is was for:

• Make a call to a number, choosing sim1 or sim2 (in my case, 2 different numbers, both cricket
• Use data as needed (either sim card)

PART B
What ACTUALLY happens (and what I found through the i-net searching:

• One card for data (OK that's fine)
• Select which sim to use for out going calls. SIM1,SIM2, ALWAYS ASK(which i have at default)
  
• It would seem that only one sim card can be used to make outgoing calls(ex. sim1), SIM2 get a "no carrier available"
• from a 3rd phone I called the "no network" sim in case it only receives INCOMING calls, but alas, not the case, just rings (on the calling phone) and goes to voice mail. Does not ring on the dual sim phone.

I did find that you can do some monkeying around with a "call forwarding" but that kinda defeats the purpose of having 2 sims, with 2 numbers(and in some cases two carriers).

I have 2 lines on my account and I thought that by having dual sim phone I could use it like 2 phones in one, but apparently that is not the case.

If I am incorrect, can someone explain what I might be doing wrong?
If this IS CORRECT can someone shed some light of what would be the benefit of a dual sim of this nature.
I would REALLY like a PART A scenario.

Thanks

 

[bukzin]

Anyone have a bit more insight on this? If not where else might I look for answers? Thx

 

[mikedt]

I have yet to understand what dual sim is for

PART A
What I THOUGHT is was for:

• Make a call to a number, choosing sim1 or sim2 (in my case, 2 different numbers, both cricket
  
• Use data as needed (either sim card)

PART B
What ACTUALLY happens (and what I found through the i-net searching:

• One card for data (OK that's fine)
• Select which sim to use for out going calls. SIM1,SIM2, ALWAYS ASK(which i have at default)
  
• It would seem that only one sim card can be used to make outgoing calls(ex. sim1), SIM2 get a "no carrier available"
• from a 3rd phone I called the "no network" sim in case it only receives INCOMING calls, but alas, not the case, just rings (on the calling phone) and goes to voice mail. Does not ring on the dual sim phone.

I did find that you can do some monkeying around with a "call forwarding" but that kinda defeats the purpose of having 2 sims, with 2 numbers(and in some cases two carriers).

I have 2 lines on my account and I thought that by having dual sim phone I could use it like 2 phones in one, but apparently that is not the case.

If I am incorrect, can someone explain what I might be doing wrong?
If this IS CORRECT can someone shed some light of what would be the benefit of a dual sim of this nature.
I would REALLY like a PART A scenario.

Thanks

Yes, that's how a dual-SIM can work. But you must have a dual-SIM active phone, which actually have two cellular radios in them.

Some cheap and budget devices might be dual-SIM standby, which means it only has one cellular radio shared between the SIMs. If you're on a call using say SIM1, SIM2 is effectively disconnected and off-line, and so it's seeing "no carrier available"

 

[mikedt]

Anyone have a bit more insight on this? If not where else might I look for answers? Thx

I do have insight, as I'm quite familiar with dual-SIM phones. See my other post in this thread.

 

[bukzin]

Yes, that's how a dual-SIM can work. But you must have a dual-SIM active phone, which actually have two cellular radios in them.

Some cheap and budget devices might be dual-SIM standby, which means it only has one cellular radio shared between the SIMs. If you're on a call using say SIM1, SIM2 is effectively disconnected and off-line, and so it's seeing "no carrier available"

Yes, I understand there is a range of dual sim phones. ie Dual SIM Dual Standby (DSDS).

Is there a list of the better versions available on Android?

Thx

 

[xra7en]

thanks for the update!! (even though its 3yrs later LOL, but happy the mods didn't close it on a necro post*
Is there something to look for on phones so you can tell it actually has 2 radios? I believe all my "dual sim" phones are what you mentioned, they go on standby
Thanks again!!

*( this is why post should stay active regardless of tenure until it has an answer)