STC’s call waiting beep actually presents three distinct choices, not just the usual switch-or-ignore — and knowing all three means you’re never stuck fumbling for the right button while a second caller waits.
Quick answer
Dial *43# to activate call waiting, #43# to deactivate, and *#43# to check status.
Your three options during the beep
| Action | Result |
|---|---|
| Press the call button | Switch to the second call; the first goes on hold |
| Ignore | Second caller goes to voicemail (if configured) or keeps ringing |
| Swipe to reject | Second caller is declined immediately, sent to voicemail right away |
The swipe-to-reject option is the one people miss most often — useful when you know immediately you don’t want to take the second call and would rather it go to voicemail now than keep beeping in the background.
Free, standard, no catch
Activation, deactivation, and status checks are all free — only the calls themselves are billed at your normal rate.
Want to block certain calls entirely instead of just managing overlaps? See STC call barring, or redirect calls elsewhere with STC call forwarding.
*43# is the GSM/3GPP standard supplementary-service code, verified against STC’s official support guidance, July 2026.
Step-by-Step Guide
- 1
Activate
Dial *43# — confirmation message appears.
- 2
Check
*#43# to verify call waiting is ON.
- 3
Deactivate
#43# to turn off if not wanted.
Alternative Methods
Dial *43# from your phone dialer.
Phone Settings > Call Waiting
Troubleshooting
No beep during calls
Verify with *#43#. May also need to enable in phone Settings > Call Waiting.
Can't switch calls
Press the call/answer button during the beep to switch between calls.
Look Up More USSD Codes
Frequently Asked Questions
Free?
Yes, activating and using call waiting is free on STC.
Works on all plans?
Yes, prepaid and postpaid.
How to switch between calls?
Press the call button to toggle. Both calls stay active, one on hold.
What does swiping to reject actually do?
It declines the second call immediately and sends it straight to voicemail, rather than leaving it ringing in the background.
Is there a difference between ignoring and swiping to reject?
Ignoring lets the call keep ringing until it naturally times out to voicemail; swiping to reject sends it to voicemail immediately.