Open the conversation, tap the three dots on the top right, and choose “Block Contact.” You can unblock later anytime.
This error occurs when the recipient’s network is temporarily unavailable. Retry later or confirm that the destination number is correct.
Your IP may reflect another location if using a VPN. Disable VPN and manually select your correct region in profile settings.
Enable background running permission. Some phones suspend VoIP when multitasking — allow CallMama to run in background.
Crashes can happen due to unstable internet or outdated app versions.
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