ITU-T V.92

This reduces negotiation times to around 10 seconds instead of over 20 seconds. Quick connect works by training the client modem on the first call; analog and digital characteristics are stored in a local profile and then retrieved for future connections.^{[citation needed]}

This allows the connection to be temporarily severed and then reconnected, reducing the possibility of dropped connections. This is particularly useful for lines that have call waiting.

Pulse-code modulation (or PCM) allows higher rate digital transmissions over the analog phone lines. PCM upstream provides a digital connection for upstream data, reducing latency and allowing for a maximum upload speed of 48 kbit/s. Previously the speed was limited to a 33.6 kbit/s analog signal under the previous V.90.

ITU-T V.44 compression replaces the existing V.42bis compression standards. It generally allows for between 10% and 120% better compression. In most situations the improvement is around 25%.^{[citation needed]}

• Dial-up Internet access
• List of interface bit rates

• ITU-T Recommendation V.92: Enhancements to Recommendation V.90
• ITU-T Recommendations: Series V