摘要:
In a method, system and apparatus for providing an endpoint-to-endpoint transcoding free connection, a customer premises equipment (CPE) at a first or second endpoint encodes and decodes voice data received from and sent to a respective one of first and second media gateways according to an initial codec type. The first and second media gateways perform a Transcoding Free Operation (TFO) negotiation to determine if there is a common codec type among the first and second media gateways and first and second endpoints. If such a common codec type is determined, the first and second media gateways switch from encoding voice data according to the initial codec type to the common codec type and send an indication of the switch to the respective one of the first and second endpoints.
摘要:
Determining the reasons for packet loss in a wireless local area network; such as an IEEE 802.11 network. The method uses the strength of received signals at a wireless station, such as the received signal strength indicator (RSSI), noise levels (e.g, non-802.11 energy in the 2.4 GHz frequency range), and packet loss information together to determine the network status. In most implementations, the 802.11 implementation (e.g., the 802.11 driver) is responsible for maintaining statistics on the RSSI and the noise whereas the measure of the packet loss is the responsibility of the application. The network status is determined by the endpoint station independent from the access point.
摘要:
A system and method for transmitting voice data traffic over a wireless medium, such as a voice call using a wireless Internet Protocol mobile phone on a wireless local area network, to increase the quality and the number of voice calls on a Basic Service Set. Endpoints are capable of dynamically switching to alternate voice coding profiles. The WLAN is surveyed by a wireless endpoint to determine whether a congested network condition exists. Coding profiles may be dynamically switched to decrease the congested conditions and improve call quality. If dynamically switching of profiles in not available then the wireless endpoint gracefully degrades the transmission by periodically dropping packets until network congestion reduces and/or call quality increases.
摘要:
A wireless mobile telephone for connecting to multiple networks that includes a cellular module for routing calls through a cellular telephone network, a wireless network module, operably connected to the cellular module, for routing calls on a wireless local area network (WLAN). The mobile telephone provides simultaneous connectivity to a cellular network and a WLAN and automatically detects and configures the mobile telephone to the WLAN when the mobile telephone enters a WLAN broadcast area using pre-programmed operating profiles for each different WLAN.
摘要:
A system and method embodying the invention utilizes voice applications that are performed by voice applications agents resident on user local devices to deliver messages to the users. The voice applications can also be used to collect information from the users. Also, voice applications can be used to allow users to purchase goods and services. Voice applications for these purposes could be customized to take into account the individual characteristics of the users.
摘要:
Systems and methods of placing a telephone call for a user include monitoring the telephone number that the user has requested to reach. Depending upon the telephone number requested by the user, the system might take an alternate action, rather than simply placing a call to the requested telephone number. In some instances, the system might take an action in addition to placing a call to the requested telephone number.
摘要:
A system and method embodying the invention utilizes voice applications that are performed by voice applications agents resident on user local devices to deliver messages to the users. The voice applications can also be used to collect information from the users. Also, voice applications can be used to allow users to purchase goods and services. Voice applications for these purposes could be customized to take into account the individual characteristics of the users.
摘要:
A distributed voice application execution environment system conducts a voiceprint analysis when a user initially begins to interact with the system. If the system is able to identify the user through a voiceprint analysis, the system immediately begins to interact with the user utilizing voice applications which have been customized for that user.
摘要:
A system and method are provided for improving the throughput of wireless networks, such as IEEE 802.11 networks. Individual devices in the network determine the level of activity on the network. In the event that the network is active, the devices increase throughput by skipping the pending packet transmission and appending its data payload to a future packet transmission. By encoding multiple payloads in a single packet transmission, packet overhead is reduced and MAC layer delays are eliminated. The data payloads are subsequently split back into individual packets for transmission over the wired portion of the network.
摘要:
A method and system is provided for to keep a VOIP provider updated with a subscriber's physical location information whether the subscriber is using the IP phone for the first time or has moved the VOIP device away from the original subscription location. The VOIP device denies service until the subscriber has specified his or her updated location.