Here are a few options for a WordPress post tag description for “國際電話” (Guó jì diànhuà – International Phone Call) in Traditional Chinese, catering to different needs and emphasis:

**Option 1: Concise & Informative**

> 標籤：國際電話。涵蓋與國際電話相關的文章，包括如何撥打、費用、網絡選擇、以及可能遇到的問題。

* **Translation:** Tag: International Phone Call. Covers articles related to international phone calls, including how to dial, costs, network choices, and potential problems.
* **Best for:** Providing a clear and concise understanding of the tag’s scope.

**Option 2: More Descriptive & User-Friendly**

> 國際電話：探索與世界聯繫的便捷之路。 了解國際電話服務的各個方面，包括選擇最佳方案、節省費用、有效拨号的方法，以及應對連接問題的技巧。

* **Translation:** International Phone Call: Explore the convenient way to connect with the world. Learn about various aspects of international phone call services, including choosing the best plan, saving on costs, methods for effective dialing, and tips for dealing with connection issues.
* **Best for:** Appealing to users and providing a more inviting explanation.

**Option 3: Emphasis on Problem-Solving**

> 國際電話疑難解答：解答您在使用國際電話時可能遇到的各種問題。 包括撥號碼、資費查詢、通訊質量問題，以及如何在不同國家輕鬆暢聊。

* **Translation:** International Phone Call Troubleshooting: Answers various questions you may encounter when using international phone calls. Includes dialing codes, rate inquiries, communication quality issues, and how to chat easily in different countries.
* **Best for:** Targeting users who are actively seeking solutions for problems.

**Option 4: Short and Sweet**

> 國際電話：與全球聯繫的關鍵。分享有關國際通話的實用資訊。

* **Translation:** International Phone Call: The key to connecting globally. Sharing practical information about international calls.
* **Best for:** A brief and general description.

**Recommendation:**

The best option depends on the overall tone and focus of your blog. I would recommend **Option 2** or **Option 3** as they are the most helpful for a general audience. However, adjust them according to the specifics of your content. Remember to consider keywords your target audience would use when searching. Good luck!