Dialogic PowerMedia XMS
Real-time communications software media server for today & tomorrow

Overview:

Dialogic’s PowerMedia XMS is a highly scalable, software-only media server that enables standards-based, realtime multimedia communications solutions for IMS, MRF, Enterprise, and WebRTC applications on premise or in the cloud. Built on 15+ years of software media processing experience, PowerMedia XMS is trusted by world-class service providers and large enterprises to power millions of rich media sessions.

With an extensive list of successful implementations that include MRF for VoLTE, carrier hosted contact centers, enterprise communications, voice messaging and “mission critical” next-generation 911 services, PowerMedia XMS has proven to be a key building block to new and innovative applications. When deployed with the optional Dialogic PowerMedia Media Resource Broker (MRB), PowerMedia XMS scales to meet growing service-provider and business requirements.

PowerMedia XMS allows for rapid integration and development through open, and industry standard APIs, including MSML, VXML, NetAnn, and JSR 309, plus a Dialogic RESTful API. As a 100% software solution with Network Function Virtualization (NFV), PowerMedia XMS allows for installation on commercial off-the-shelf (COTS) servers, virtual machines, or public & private clouds.

PowerMedia XMS supports an extensive range of real-time media processing needs, including:

• Multi-party conferencing – low-latency mixing of audio and video, including HD voice and high-resolution video up to HD 720p, and Multi-point Control Unit (MCU) for group communications with the ability to adapt individual streams to optimize the experience for each user
• Transcoding – any-to-any audio and video codec conversion for a wide-range of fixed, wireless, and web-oriented codecs, including transrating and transizing for video
• Media interworking – conversion of underlying transport protocols and encryption interworking, including support for a WebRTC Media Gateway
• Recording – flexible centralized audio and video recording for mixed conferences, or individual streams
• Stream processing – analyze, insert, and modify the audio or video stream for speech recognition, DTMF, video overlays, and much more
• Person-to-Machine – connect to computer-controlled interfaces, not just other people, for applications such as Interactive Voice (and Video) Response (IVR and IVVR) systems, and speech interaction

Dialogic PowerMedia XMS: Interfaces, Functions, and Deployment Environments

Features and Benefits:

Features	Benefits
Highly scalable, software media server with advanced multimedia processing functionality with an optional PowerMedia Media Resource Broker (MRB)	Facilitates the development and deployment of rich communication applications and services across Web, VoIP/SIP, Mobile and PSTN networks with a wide range of connected endpoints. By offloading difficult media handling requirements to PowerMedia XMS, service providers, and developers are able to focus on unique aspects of their application without the burden and cost associated with developing highly-scalable media expertise in-house.
Standards-compliant IMS MRF with full Voice over LTE (IR.92) and Video over LTE (IR.94) support	Conforming to the 3GPP IMS architectural specifications, PowerMedia XMS can be deployed as a Media Resource Function (MRF), providing key media processing capabilities that may be required by IMS-based services such as VoLTE and RCS. Additionally, its conformance to IMS specifications promotes compatibility between legacy telephony networks and evolving IP telecommunication standards.
Robust HD audio and video media support with IETF, 3GPP and W3C WebRTC codecs	As new codecs are being introduced into the market, PowerMedia XMS can act as a transcoding gateway, providing interworking of a wide variety of audio and video codecs. PowerMedia XMS’s software nature also means that new codec support can be rapidly added without changing physical DSPs or necessitating complicated firmware upgrades.
Support for Commercial-Off-The-Shelf (COTS), virtualization, and Network Function Virtualization (NFV) deployment models	Reduces both OPEX and CAPEX by utilizing existing datacenter infrastructure and cloud services for deployment of dynamically scalable communication solutions.
Media control through open, and industry standards based API’s	Energizes service provider and communication developers by leveraging industry-standard programmable APIs to rapidly add sophisticated media handling capabilities to their applications.
Web-based GUI and HTTP RESTful Management interface for media server management, control and monitoring	Intuitive, yet powerful operator console can reduce OPEX when deploying solutions by enabling the quick resolution of operation issues. The HTTP RESTful web management interface provides seamless integration with existing infrastructure for real-time monitoring, alarms, logging, and tracing.
Scalable licensing from ten ports to thousands of ports per server	The simple, flexible, and scalable licensing model allows paying only for the functionality your application needs and only when you need it. Applications can start with licenses for basic audio services and can later add HD voice or video capabilities when required by the application, thus providing significant CAPEX savings opportunities by allowing solutions to be scaled easily by software upgrade as demand grows.

Solutions:

Specifications:

Technical Specifications
Session Capacity	Typical media sessions per server (specific per server results will depend on a variety of factors, including but not limited to deployment conditions, configurations, and equipment): Audio — Up to 2000 sessions of G.711 or 1000 sessions with full-duplex (RTP-RTP) transcoding Video — Up to 450 unidirectional sessions (also includes audio transcoding), depending on system capacity, codec, resolution, frame rate, etc. When multiple servers are deployed with PowerMedia MRB, total scaling can achieve upwards of 50,000 audio sessions and 2,000 video sessions.
Signaling, Protocol, and Control Interfaces
Control Protocols and Specification Compatibility	SIP (RFC3261) SIP PreConditions (RFC3312, RFC4032) SIP DNS (RFC3263) GSMA IR.92 for Voice over LTE (VoLTE) GSMA IR.94 for Video over LTE (ViLTE) 3GPP TS23.288 for IMS (Mr/Mr’ and Cr interfaces) WebRTC JavaScript API MSRP for multimedia chat and RCS message services RTSP client support for streaming multimedia content from RTSP servers MRCP v2.0/v1.0 for connection to speech servers for ASR/TTS - see “Third Party MRCP Speech Vendor Capability” below
Media Protocols	IPv4, IPv6, and mixed-mode IPv4/IPv6 (Multiple-NIC support) 3GPP Mb (RTP) interface for IMS RTP, RTCP, RTCP-XR, RTCP-HR Secure SRTP: DTLS-SRTP (WebRTC), SDES-SRTP (VoIP) ICE Lite, Trickle ICE HTTP
Media Control Interfaces	RESTful API - HTTP-based RESTful web services interface MSML (RFC5707) – SIP with XML-based Media Server Markup Language JSR 309 Connector – industry-standard Java media server control API for multimedia application development VXML v2.1/v2.0 (VXML v3.0 for Video) - W3C industry-standard XML interface for specifying interactive voice dialogs for IVR or speech enabled applications. NetAnn (RFC4240) – Basic Network Media Services with SIP for announcements, dialogues, and simple conferences
Media and Coders
Audio	Voice and HD Voice play/record Tone generation/detection (Inband DTMF, RFC2833/RFC4733 including RFC4734/RFC5244 tone events) Call progress analysis (CPA) Positive Voice Detection (PVD) and Positive Answering Machine Detection (PAMD)
Audio Codecs	Narrowband codecs: G.711u/a, G.723, G.726, G.729a, G.729b, iLBC, GSM-FR, GSM-EFR, and AMR-NB (including AMR2) Wideband codecs: Opus, G.722 and AMR-WB (G.722.2) Voice activity detection, silence suppression, comfort noise generation
Audio Conferencing	N-way (including HD Voice) audio mixing Conference Recording (summed or individual parties) Automatic Gain Control (AGC) Per party gain/volume control Active talker detection DTMF clamping Coach-pupil (whisper) mode Loudest N-party mixing Privileged party mixing Echo cancellation
Video	Play/record, including fast forward, rewind, pause, resume Video transcoding, transrating, and transizing Video overlays (text and image overlay with scrolling) Dialogic patented Video Encoder Sharing technology
Video Codecs	H.264 Baseline Profile, up to Level 3.1 (HD720p) VP9, up to HD720p VP8, up to HD720p MPEG 4 Simple Profile, up to Level 4 (VGA) H.263, H.263+, H.263++ Baseline Profile, up to CIF Image sizes: HD720p, 4CIF, VGA, CIF, QVGA, QCIF, SQCIF (and custom resolutions) Frame rates: Up to 30 FPS Bit rates: Up to 2Mbps Video Fast Update (VFU): Configurable responses to I-Frame Update requests Fully adaptive video jitter buffer Dialogic patent-pending Packet Loss Concealment (PLC) technology Dialogic patent-pending Dynamic Bitrate Adaptive Encoding technology Dialogic patented Encoding Bitrate Control technology RTCP feedback support (PLI, FIR, REMB, TMMBR, TMMBN, Generic NACK)
Media Handling	File operations: HTTP1.1, HTTPS, and/or NFS; RTSP/RTP Audio File Containers: .wav, .pcm, .vox, .aud, .amr,.amb WAV/PCM Codec Formats: 8k lin PCM, 11k lin PCM, 16k lin PCM, 8k alaw PCM, 8k mulaw PCM AMR Codec Formats (RFC 4867): AMR-NB(.amr) and AMR-WB(.amb) Multimedia File Formats: .3gp, .mp4, .mkv, Dialogic .vid/.aud 3GP Container Codec Formats: Video: H.264, MPEG4, H.263 Audio: AMR-NB, AMR-WB MP4 Container Codec Formats: Video: H.264 Audio: AMR-NB, AMR-WB MVK Container Codec Formats: Video: VP8, H.264 Audio: Opus
Fax	Fax Tone Detection & Notification Fax Send and Receive: G.711 or T.38 (Up to v.17) RFC 6913 – Indicating Fax with SIP TIFF and PDF file formats
Language Support
Variable content announcement / language phrasing	“date”, “digits”, “duration”, “month”, “money”, “number”, “silence”, “time”, “weekday”
Customizable to support virtually any language or dialect Built-in voice files	US English, Mandarin Chinese, Spanish are standard; French, German, Japanese, Italian, Greek and others are available upon request
Virtualization & Cloud
Virtualization & Cloud	VMWare ESXi 5.x Kernel-based Virtual Machine (KVM) Oracle VM XEN Virtual Machine Rackspace Cloud Servers Amazon Web Services (AWS) 1
System Management
System Management	Intuitive Web GUI Real-time monitoring and management via HTTP RESTful control interface Command Line Interface (CLI) Scripting Remotely managed tracing and logging SNMP v2c/v3 for management and traps Call Detail Records (CDR) Active Call Monitoring Audit Logging
Licensing
Licensing	Scalable from (10) to thousands of ports per server A time-limited trial license is available for evaluation purposes For more information about development licenses, please contact Dialogic inside sales ([email protected])
Hardware Support and Minimum System Requirements
Hardware	Intel Architecture-based server
Operating System (64-bit OS)	CentOS Release 7.0 ISO installation OR RedHat Enterprise Linux 7.0 CentOS Release 6.4 (rpm-only) RedHat Enterprise Linux 6.4 (rpm-only) Oracle Enterprise Linux 6.4 (rpm-only)
Processor	Intel Dual 56xx or greater
Ethernet	Single or Dual 1000Base-TX (RJ-45)
Memory	8 GB RAM minimum
Storage	120 GB HD minimum
Third Party MRCP Speech Vendor Compatibility
Third Party Compatibility	Lumenvox (ASR and TTS) Nuance (ASR and TTS) Vestec (ASR)

¹ Planned future feature

Documentation:

Download the Dialogic PowerMedia XMS Datasheet (.PDF)