56K PCI Voice Modem SF-1156IV R9A

Windows device driver information for 56K PCI Voice Modem SF-1156IV R9A

Unlike other regular modems within the market the 56K PCI Voice Modem SF-1156IV R9A has the capability of supporting phone answering machine operations. The device can playback and records messages onto Microsoft Windows and it is considered a wave device. The software that supports this voice operation uses a sound card within the appliance to playback and record. Other functions that the 56K PCI Voice Modem SF-1156IV R9A can perform include dialing or answering calls with the use of the sound card's speakers, headphones or microphone. Additional software can be used with the voice modem in order to boost its functionality. Such is the case with programs that are able to record calls to wav format files. This appliance is full duplex enabled meaning that it talking and listening can be done simultaneously which enhances functionality. Without full duplex support the quality of voice is greatly compromised.

The 56K PCI Voice Modem SF-1156IV R9A manages to handle download speeds that reach an maximum of 56 kilo bits per second but this speed is usually only reached when the system being called has a telephone system that is digitally connected. In normal 8 N 1 connections, the actual throughput reaches a upper limit of 5.6 kilo bytes in a second. This throughput can increase greatly when internal compression is used. Sufficient throughput varies according to framing protocols, data compression and noise among several other factors. The 56K PCI Voice Modem SF-1156IV R9A has a quick connect function which brings down negotiation time up to approximately 10 seconds in contrast to the regular 20 seconds. The ‘modem on hold function' is enabled with this model and allows connections to be momentarily cut and there after reconnected, thus reducing the number of dropped connections It is highly recommended you run a free registry scan for and 56K PCI Voice Modem SF-1156IV R9A errors before installing any driver updates.