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Introduction The objectives of this TSB are to provide end-to-end voice quality guidelines for North American IP Telephony and to an E-Model tutorial for IP scenarios. IP Telephony introduces several impairments, some of which are familiar and some new. The...
This Standard specifies the minimum requirements for media and protocol-specific call control interoperability, acoustic performance, telephony feature support, safety, electromagnetic compatibility, and environmental performance of WLAN IP telephony endpoints operating in a...
Emergency calling solutions exist to retrieve user's information and geolocation for both E.164 and PLMN telephone networks: An E.164 emergency call relies on the public phone directory to retrieve information; A PLMN emergency call relies on Cell Ids and radio triangulation process to retrieve...
This standard establishes transmission requirements for Voice Gateways (VGs) that interface with various elements of public and private telecommunications networks.For the purposes of this standard, a VG is considered to be a device that performs voice routing functions between: Telephones; Public...
Session Initiation Protocol (SIP), standardized by the Internet Engineering Task Force (IETF), has emulated the simplicity of the protocol architecture of hypertext transfer protocol (HTTP) and is being popularized for VoIP over the Internet because of the ease with which it can be meshed with web...
This standard addresses IP-based digital telephony (sometimes referred to as Voice over IP) on the VHN. As the VHN is inherently digital it does not address analog telephony; nor does it address non-packet digital telephony, such as the streaming service provided...
The purpose of the document is to examine whether accuracies achievable by currently available synchronization methods in IP networks are adequate to ensure end user's quality of service expectation for a particular multimedia service. This TSB will discuss the issues related to interstream...
This Standard defines a set of organizationally-spe
This book on SDP is the first of this kind that attempts to put all SDP related RFCs together with their mandatory and optional texts in a chronological systematic way as if people can use a single "super-SDP RFC" with almost one-to-one integrity from beginning to end to see the big picture of SDP...
This memo defines a portion of the Management Information Base (MIB) module for use with network management protocols in the Internet community. In particular, it describes a set of managed objects that are used to manage Telephony Routing over IP (TRIP) devices.
This document defines a new attribute for the Telephony Routing over IP (TRIP) protocol. The attribute associates protocols/services in the PSTN offering authorized prioritization during call setup that are reachable through a TRIP gateway. Current examples of preferential service in...
Introduction This Technical Report (TR) describes the means by which the Teletypewriter (TTY) service can be provided over IP between operators' networks through the use of the Global Text Telephony (GTT) capability which enables simultaneous audio and/or video with text media stream....
Abstract This memo updates the IANA registry rules for the Telephony Routing over IP (TRIP) protocol, by no longer requiring that postal addresses be included in contact information. This memo updates RFC 3219.
This document describes the Telephony Gateway Registration Protocol (TGREP) for registration of telephony prefixes supported by telephony gateways and soft switches. The registration mechanism can also be used to export resource information. The prefix and resource information...
