Using telegram 官網 without a phone number might be tricky, but fortunately, there are a couple of methods you can employ. This is mainly due to Telegram's primary requirement of linking to your mobile phone number upon signing up, a process designed to enhance the security and reliability of two-factor authentication (2FA) when sending sensitive information between users.

However, this doesn't mean that you cannot access Telegram without a phone number. Here's a step-by-step guide to help you do so.

Method One: Using Telegram Through the Desktop App Without Verification

One of the ways you can use Telegram on a desktop without linking a phone number is by using the web version, however, the same can be done with a local app install, without a need to use it as an application, the trick here is to sign up with 'None' as the phone number. Once signed-up, you should be able to communicate with your contacts, create new groups, and enjoy the majority of Telegram's features.

Please note, however, some features are still going to be limited if you decide to opt for the None method. For example, you wouldn't be able to participate in any channels unless they have a public invite link. You'd have access only to personal and group chats.

Method Two: Using Telegram Through Google Drive for Users Without a Mobile Phone

For individuals who don't have access to a mobile phone but still want to use Telegram, there is an effective way to link your account to Google Drive. The trick lies in the fact that when you try to sign up for Telegram on your computer or a non-mobile device, you can select the "None" option to get past the phone number verification step. Then, you can link your Google Drive account, this way your messages are backed up in your Google Drive storage. To do this follow these steps:

1. Go to telegram.org and sign up without a mobile number.
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3. When prompted to choose an authentication method, select Google Drive.
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5. Link your Google Drive account to your Telegram account.
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7. After authenticating, you can start sending communications via the desktop app directly to Google Drive and from Google Drive to your computer.
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Method Three: Using Telegram Without a Phone Number on Linux or macOS Using 'None' Option

This method is quite identical to Method Two, except this time you have more control over the application. You can use Telegram as an effective application on Linux or macOS without needing the native desktop app.

1. Download the Telegram source code from the Telegram website.
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3. Extract the downloaded file in a directory and install the application manually.
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5. During the installation, you will be prompted to select an authentication method, in this case, choose 'None' for the phone number and link a Google Drive account.
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7. The application should authenticate correctly against Google Drive and allow the functionality of storing messages to Google Drive, while the original Telegram application does the same thing.
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It's essential to note that there might be some variations in functionality depending on the steps you take to set up Telegram on your device. This is because you're bypassing the typical mobile phone number requirement which is the primary mode of authentication for Telegram users. Nevertheless, these steps will allow you to share files and communicate with your contacts even without a mobile phone.