This article explores in-depth two main strategies for implementing call hold (Hold) and recovery (Un-hold) in Twilio voice calls. First of all, it is recommended to use the Twilio Conference feature to easily control the retention and recovery of calls by updating the resources of meeting participants, and to configure the retention of music. Second, for more complex independent call leg scenarios, the article explains how to manage call state through carefully designed TwiML streams (such as using, and) to avoid accidental disconnection of non-holding legs and enable call reconnection.

The real use of battle royale in the dual currency system has not yet happened. Conclusion In August 2023, the MakerDAO ecological lending protocol Spark gave an annualized return of $DAI8%. Then Sun Chi entered in batches, investing a total of 230,000 $stETH, accounting for more than 15% of Spark's deposits, forcing MakerDAO to make an emergency proposal to lower the interest rate to 5%. MakerDAO's original intention was to "subsidize" the usage rate of $DAI, almost becoming Justin Sun's Solo Yield. July 2025, Ethe

Directory What is Bitcoin? How does Bitcoin work? Why is Bitcoin not scalable? What is BIP (Bitcoin Improvement Proposal)? What is Bitcoin Taproot Update? Pay to Taproot (P2TR): Benefits of Taproot: Space-saving privacy advantages Security upgrade conclusion: ?Bitcoin is the first digital currency that can send and receive funds without using a third party. Since Bitcoin is software, like any other software, it needs updates and bug fixes. Bitcoin Taproot is such an update that introduces new features to Bitcoin. Cryptocurrency is a hot topic now. People have been talking about it for years, but now with prices rising rapidly, suddenly everyone decides to join and invest in them. Message

The five most popular Bitcoin market APPs in 2025 are: 1. Binance, whose data comes directly from the world's largest trading pool, updated in milliseconds, suitable for professional traders; 2. Ouyi (OKX), accurate market conditions and smooth APP experience, the first choice for mobile users; 3. Huobi (HTX), a veteran exchange, stable technology, reliable mainstream currency data; 4. Gate.io (Sesame Open Door), rich currency types, is a powerful tool for mining the early market of altcoins; 5. CoinMarketCap, a world-renowned data aggregation platform, integrates data from hundreds of exchanges, provides weighted average reference prices, authoritative and fair.

The total amount of Bitcoin is 21 million, which is an unchangeable rule determined by algorithm design. 1. Through the proof of work mechanism and the issuance rule of half of every 210,000 blocks, the issuance of new coins decreased exponentially, and the additional issuance was finally stopped around 2140. 2. The total amount of 21 million is derived from summing the equal-scale sequence. The initial reward is 50 bitcoins. After each halving, the sum of the sum converges to 21 million. It is solidified by the code and cannot be tampered with. 3. Since its birth in 2009, all four halving events have significantly driven prices, verified the effectiveness of the scarcity mechanism and formed a global consensus. 4. Fixed total gives Bitcoin anti-inflation and digital yellow metallicity, with its market value exceeding US$2.1 trillion in 2025, becoming the fifth largest capital in the world

Domestic purchase of Bitcoin must be carried out through compliance channels, such as Hong Kong licensed exchanges or international compliance platforms; 2. Complete real-name authentication after registration, submit ID documents and address proof and perform facial recognition; 3. Prepare legal currency and recharge it to the trading account through bank transfer or electronic payment; 4. Log in to the platform to select Bitcoin trading pairs, set limit orders or market orders to complete the transaction; 5. Pay attention to market fluctuations and platform security, enable dual certification and comply with domestic regulatory policies; overall, investors should operate cautiously under the premise of compliance and participate in Bitcoin investment rationally.

The core of using PHP to combine AI to achieve automatic digest is to call AI service APIs, such as OpenAI or cloud platform NLP services; 2. Specific steps include obtaining API keys, preparing plain text, sending POST requests with curl, analyzing JSON responses and displaying the digest; 3. The digest can efficiently filter information, improve readability, assist in content management and adapting to fragmented reading; 4. Selecting a model requires consideration of the abstract type (extracted or generated), cost, language support, document ease of use and data security; 5. Common challenges include rate limiting, network timeout, text length limit, cost out of control and quality fluctuations. The response strategy includes retry mechanism, asynchronous queue, block processing, cache results and optimization prompt words.

The Hong Kong government restarted the "Capital Investor Entry Plan", and for the first time included cryptocurrencies in the investment scope, clearly attracting high-net-worth individuals around the world with the investment threshold of HK$30 million; of which HK$3 million must be invested in the Innovation and Technology Investment Portfolio, and HK$27 million can be used to invest in stocks, bonds, funds, non-residential real estate or virtual assets; 1. Applicants can invest all HK$27 million in cryptocurrencies traded on platforms such as Ethereum and the Hong Kong Securities Regulatory Commission; 2. The typical combination is HK$27 million Ethereum plus HK$3 million Innovation and Technology Investment, meeting the application conditions; this move marks Hong Kong's active construction of Web3 and virtual asset centers to promote the digital economy and talent aggregation.