No, you cannot call 0800 numbers without a SIM card. 0800 numbers are toll-free numbers that are typically used for customer service and support, and they can only be dialed from a phone with an active SIM card and service plan. Without a SIM card, the phone does not have a network connection and therefore cannot make any calls, including calls to 0800 numbers. **

Strange numbers can sometimes call, and it's important to be cautious when answering them. These calls could be from telemarketers, scammers, or even wrong numbers. It's always a good idea to screen calls from unknown numbers and be wary of providing personal information over the phone. If a strange number calls, it's best to proceed with caution and consider blocking the number if it becomes a nuisance. **

It is generally not recommended to answer or call back unknown numbers due to the risk of potential scams or unwanted solicitations. If the caller does not leave a voicemail or message, it is best to ignore the call. If the call is important, the caller will likely leave a message or try to reach out through other means. **

0038 numbers are not a standard international dialing code, so it is difficult to determine if they constantly call. However, if you are receiving constant calls from a number with the prefix 0038, it is possible that it could be a telemarketing or scam call. It is important to be cautious and avoid answering or returning calls from unknown numbers, especially if they are persistent. Consider blocking the number or reporting it to your phone carrier if the calls become excessive. **

Unknown numbers can sometimes call constantly, especially if they are from telemarketers, scammers, or robocalls. These calls can be persistent and annoying, often disrupting daily activities. It's important to be cautious when answering unknown calls and to consider using call-blocking features or apps to help manage and reduce these constant calls. **

No, not all numbers on the smartphone are blocked after an emergency call. When an emergency call is made, the phone may temporarily block other outgoing calls to prioritize the emergency call, but this does not block all numbers on the phone. Once the emergency call is completed, normal phone functions are restored. It's important to note that emergency calls should always take precedence, and users should follow any instructions given by emergency services. **

Yes, it is possible to call someone even if they don't have credit on their smartphone. As long as the person has a working phone and is within a network coverage area, they can receive calls regardless of their credit status. However, they may not be able to make outgoing calls or use data services without credit or a phone plan. **

Unknown numbers do not typically call every hour. While it is possible to receive multiple calls from unknown numbers in a short period of time, it is not common for them to call every hour. If you are receiving frequent calls from unknown numbers, it may be a good idea to block those numbers or report them as spam to your phone carrier. **