Make and answer phone calls Detect tone and pulse digit from the phone line Capture Caller ID Support blind transfer, single-step transfer/conference, consultation transfer/conference, hold, unhold. Control of the local phone handset, microphone and speaker of the modem Send and receive faxes Play and record on the phone line or sound card Play music in background mode Silence detection VU Meter Wave sound editor that allows your end-users to edit their own sound files. Voice recognition and Voice synthesis. Full control over the serial port device ZModem file transfer utility File compression and encryption utility
上傳時間： 2013-11-30
上傳用戶：水中浮云
First of all, the Applet-phone is a SIP User-Agent with audio and text messaging capabilities. But i s also embedded in an applet where you can use it as usual if your firewall allow you to use the UDP transport. If not, you can use TCP to carry your Voice in a Voice messaging fashion. Your Voice is recorded and encoded locally then sent as a message, decoded and played back by your peer. Voice messaging allow you to go through any firewall, so that you can continue to chat and talk with your friends from an applet !
標簽： Applet-phone capabilities User-Agent messaging
上傳時間： 2014-01-11
上傳用戶：c12228
一個非常完整的網絡會議系統，用c#實現。涵蓋了視頻會議（video conference）、語音會議（Voice conference）、文字會議（text conference）等模式。功能非常齊全。
標簽： 網絡會議
上傳時間： 2014-01-04
上傳用戶：Altman
ITU-T G.729語音壓縮算法。 description: Fixed-point description of commendation G.729 with ANNEX B Coding of Speech at 8 kbit/s using Conjugate-Structure Algebraic-Code-Excited Linear-Prediction (CS-ACELP) with Voice Activity Decision(VAD), Discontinuous Transmission(DTX), and Comfort Noise Generation(CNG).
標簽： description commendation Fixed-point 729
上傳時間： 2014-11-23
上傳用戶：thesk123
IBM關于聲音應用開發的白皮書.This white paper is intended for software developers who want to learn about the tools and techniques available to create new Voice applications.
標簽： developers intended software white
上傳時間： 2014-01-14
上傳用戶：libenshu01
when enter different number from 1 to 8 the litte character on the screen can make different activities accompanied by 8 different Voice! and the program will terminated when you press the "enter " key
標簽： different character the number
上傳時間： 2014-10-31
上傳用戶：aysyzxzm
This project aim was to build wireless software modem for data communication between two computers using an acoustic interface in the Voice frequency range (20Hz– 20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz – 20,000Hz) and the receiving antenna is a microphone (frequency response of: 100Hz – 16,000Hz). The test files used as information files were text files. This goal was attained both in an incoherent scheme and in a coherent scheme. Build under Matlab code, our modem uses OFDM (orthogonal frequency division multiplexing) modulation, synchronization by LMS sequence, channel estimation (no equalizer) via pilot tones. The symbols are either PSK or ASK for a constellation size of 2 or 4. To optimize the probability of error, these symbols were mapped using Gray mapping. Report
標簽： communication computers software wireless
上傳時間： 2014-05-29
上傳用戶：wangdean1101
Siproxd is a proxy/masquerading daemon for the SIP protocol. It handles registrations of SIP clients on a private IP network and performs rewriting of the SIP message bodies to make SIP connections work via an masquerading firewall (NAT). It allows SIP software clients (like kphone, linphone) or SIP hardware clients (Voice over IP phones which are SIP-compatible, such as those from Cisco, Grandstream or Snom) to work behind an IP masquerading firewall or NAT router
標簽： registrations masquerading SIP protocol
上傳時間： 2016-04-10
上傳用戶：fnhhs
移動ip書籍，很有用。 Third Generation (3G) mobile offers access to broadband multimedia services - and in the future most of these, even Voice and video, will be IP-based. However 3G networks are not based on IP technologies, rather they are an evolution from existing 2G networks. Much work needs to be done to IP QoS and mobility protocols and architectures for them to be able to provide the functionality 3G requires.
上傳時間： 2013-12-16
上傳用戶：moerwang
Abstract-The effect of the companding process on QAM signals has been under investigation for the past several years. The compander, included in the PCM telephone network to improve Voice performance, has an unusual affect on digital QAM data signals which are transmitted over the same channel. The quantization noise, generated by the companding process which is multiplicative (and asymmetric), degrades the detectability performance of the outermost points of the QAM constellation more than that of the inner points. The combined effect of the companding noise and the inherent white gaussian noise of the system, leads us to a re-examination of signal constellation design. In this paper we investigate the detectability performance of a number of candidates for signal constellations including, a typical rectangular QAM constellation, the same constellation with the addition of a smear-desmear operation, and two new improved QAM constellation designs with two-dimensional warpi
標簽： investigation Abstract-The companding the
上傳時間： 2013-12-20
上傳用戶：英雄
