Dialogic PowerMedia HMP for Windows
Host Media Processing Software for Voice IP Solutions
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Overview:
Dialogic PowerMedia HMP for Windows (HMP Windows) is scalable, feature-rich media processing software for building innovative and cost-effective voice solutions suitable for enterprise or service provider deployment. HMP Windows can enable basic SIP or hybrid connectivity, audio play/record, transcoding, fax, automated interactive voice response (IVR), and high-end live interactions, such as contact centers and audio conferencing or speech portals. With HMP Windows, Dialogic brings decades of media processing and signaling development experience to a pure software media engine, allowing developers to transition many existing Dialogic hardware-based applications to software-based IP-enabled solutions, or create completely new interactive applications.
HMP Windows extends the capabilities of software-based IP media processing with security features that scale up to 5000 SIP signaling sessions or 2000 concurrent voice user sessions per system. HMP Windows runs on general-purpose servers without the need for specialized hardware. Along with virtualization support, this reduces total cost of ownership and provides greater efficiency and deployment flexibility. Adding Dialogic HMP Interface Boards (DNI Boards) allows PSTN connectivity in a “single box” solution with gateway functionality. Programming interfaces for HMP Windows include Dialogic R4 and Global Call APIs for low-level media and signaling control.
Applications
- IVR and speech-enabled IVR
- Voice announcement server
- Voice mail server
- Unified Messaging (Voice, Fax, Speech)
- Audio Conferencing Server
- Prepaid/debit card services
- Contact center
- Outbound dialing
- Speech-enabled applications
- Transcoding Server (TDM-IP, IP-IP, Voice, Video)
- IP Media gateways
- TDM/IP gateways
- Converged PBX and IP-PBX
How PowerMedia HMP Windows Works
HMP Windows performs media processing tasks on general-purpose processors running on common server architecture without requiring specialized hardware. HMP Windows provides media services and functionality for building flexible, scalable, and cost-effective converged telephony applications, next-generation multimedia servers and gateway solutions for TDM, IP, 3G/4G wireless and IMS networks. HMP Windows is complimented by support for other Dialogic products and technologies, including:
- Dialogic Global Call and R4 APIs — enables existing applications written for other Dialogic products (for example, board products) to move easily from TDM to IP and to HMP Linux.
- Dialogic HMP Interface Boards (DNI Boards or Analog boards) — enables PSTN (T1/E1) connectivity in a variety of densities and 4-port Analog boards
- Dialogic DSI SS7 Boards, Dialogic DSI Signaling Servers, and Dialogic DSI Protocol Stacks
– provides TDM or IP SS7 interfaces using Global Call API for SS7 Signaling
– supports single-server solutions, such as for pre-paid wireless and CRBT
Security Features
HMP Windows supports security features to encrypt media and signaling information for media transactions. Secure RTP (SRTP) provides encryption, message authentication, and integrity and replay protection to RTP data so that conversations cannot be stolen for later playback. Transport Layer Security (TLS) is available in SIP to protect signaling data so that dialing or keypad input information cannot be stolen.
Multimedia Features
When deployed in an IP network, HMP Windows supports the initiation and termination of a multimedia (audio/video) call, which includes SIPbased call control and H.263 video format. HMP Windows synchronizes voice and video streams for playback on IP video phones and videoenabled soft clients, and it can also deliver only the audio portion of a video call to an audio-only endpoint.
Easy Migration to Hybrid TDM-IP and Pure IP Solutions
HMP Windows uses the Ethernet Network Interface Card (NIC) typically present in host server platforms to enable IP connectivity, and supports the IETF RFC 3261 SIP standard for voice and video call session establishment.
When combined with Dialogic HMP Interface Boards (DNI Boards) for PSTN connectivity, HMP Windows provides a cost-effective platform for building TDM solutions, and then later migrating them easily to hybrid platforms, and ultimately to pure IP deployments. The DNI Boards are software-selectable T1 and E1 trunks supporting a range of PSTN protocols, including ISDN and CAS. Hybrid platforms can be deployed as IP media gateways, enhanced service platforms, or converged PBX solutions.
To help customers accelerate their time-to-market and migrate existing applications to IP, HMP Windows supports two direct APIs: the Dialogic R4 API for media processing and the Dialogic® Global Call API for call control. Because these APIs are consistent with the APIs for Dialogic boards with DM3 architecture, Dialogic customers can facilitate quick application development and easy migration from a board-based platform to a platform based on HMP Windows.
Interoperability
To provide interoperability for high-quality media streaming with a wide variety of IP gateways and endpoints that comply with IETF and ITU standards, HMP Windows supports RTP/RTCP protocols for streaming over IP using G.711, G.726, G.723.1, G.729, GSM-FR, GSM-EFR, AMR-NB, AMR-WB (G.722.2) and G.722.
To further provide high voice quality and low latency, HMP Windows supports:
- Threshold alarms
- Packet loss reduction/concealment
- RTP and RTCP timeouts
- Type Of Service (TOS) byte setting
- Detection and reporting of timeouts in RTP and RTCP sessions to applications
Conferencing
Audio Conferencing features in HMP Windows facilitate the development of advanced conferencing applications. These features include:
- Coaching and Whisper Conferencing
- Active talker notification
- Tone clamping
- Echo cancellation
Other Notable Features
HMP Windows also includes the following notable features:
- Support for HD Voice Messaging using wideband audio codecs G.722 and AMR-WB (G.722.2)
- Ability to use Dialogic’s IP call control API or, at developers’ preference, to integrate another IP call control protocol stack
- Ability to programmatically control the volume of RTP sessions in order to benefit the end-user experience
- Support for a variety of media processing functions, such as:
– Play with volume control
– Record with Automatic Gain Control (AGC)
– Dual-Tone Multi-Frequency (DTMF)
– User-defined tone detection and generation, including industry-standard RFC 2833/RFC 4733 mechanisms - Support for outbound call progress analysis with positive voice detection and positive answering machine detection algorithms
- Support for Dialogic Continuous Speech Processing (CSP) functionality with APIs that are compatible with Dialogic boards, allowing integration with Automatic Speech Recognition (ASR) engines
- Support for fax store and forward for IP (T.38 and G.711 fax pass-through) and PSTN (V.17) networks.
Features and Benefits:
| Features | Benefits |
|---|---|
| Supports up to 2000 channels of G.711 RTP with voice play or record on COTS servers | Allows high-density media processing on COTS servers |
| Applications scale according to processor performance, memory and co-resident application demands on the host server platform | Allows for high density, cost-effective IP and TDM solutions that typically can support several thousand concurrent sessions |
| VMware ESXi Virtualization support | Promotes low CAPEX, and deployment of communications solutions on virtual machines |
| Supports Dialogic HMP Interface Boards (DNI Boards) for T1/E1, and analog media boards (4 port) | Enables converged solutions in enterprise and service provider environments with easy migration to pure IP platforms |
| Security support of SRTP and SIP TLS | Provides encryption protection at the media layer with SRTP and at the signaling layer with TLS |
| Support for local Dialogic Global Call API for Call Control and Dialogic R4 API for Media | R4 API and Global Call API allow easy migration of existing applications by providing compatibility at the API level with other Dialogic telecom products. |
| Conferencing features include coaching, active talker notification, tone clamping, echo cancellation, and scalability | Facilitates development of advanced conferencing applications |
| Supports play, record, and synchronization of voice and H.263- format video in a multimedia stream that includes video I-frame detection to trigger start of record as well as transmit-of-tone notification when recording begins | Enables media processing for video-based messaging and content delivery media servers |
Configurations:
Applications developed on HMP Windows often serve as a voice or video IP Media Server, a network entity that terminates IP signaling and media connections in a network, which can be deployed differently in service provider and enterprise environments. Configurations for IP media servers that can be developed with HMP Windows include network announcement, IVR, voice mail, and conferencing server.
Service Provider Configuration
Figure 1 illustrates how an IP media server based on HMP Windows can be deployed in a typical service provider environment for IVR, announcements, voice mail/messaging, speech, or conferencing applications.
An IP-PSTN gateway terminates PSTN connections. A softswitch manages call establishment and teardown over IP. Once the call is established, an RTP connection is created between the IP media server and an endpoint. The softswitch tells the IP media server, IP endpoints, and IP-PSTN gateway when to establish or drop connections.
Figure 1. Dialogic PowerMedia HMP for Windows in a Service Provider Environment
Enterprise Configurations
Figure 2 shows an example of how HMP Windows can be deployed in a media gateway or a converged PBX in an enterprise environment for IVR, video portal, auto attendant, voice mail, unified messaging, speech, or conferencing services.
Figure 2. Dialogic PowerMedia HMP for Windows in an Enterprise Environment
Figure 3 provides a more detailed architectural view of the converged PBX element shown in Figure 2. HMP Windows presents the media and API to the application. It also controls the Dialogic HMP Interface Boards (DNI Boards) for T1 and E1 connectivity.
Figure 3. Dialogic PowerMedia HMP for Windows in a Converged PBX
Specifications:
| Technical Specifications | |
|---|---|
| Channel Density | Using G.711, a maximum of 2000 concurrent user sessions per system of voice, or 580 conferencing. A wide variety of other configurations that combine RTP streaming, voice, fax, speech, multimedia, and conferencing resources are also available, and the maximum number of concurrent sessions per system is configuration-dependent. |
| Network Interface |
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| Call Control over IP and TDM | |
| Protocols |
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| Media Streaming over IP | |
| Protocols |
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| Audio Codecs |
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| QoS |
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| Tone generation and detection |
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| Media control over RTP | Programmatic control of inbound RTP stream gain and outbound RTP stream volume |
| Voice Processing Features | |
| Features supported | Play, record, and tone generation and detection |
| Play | Volume control and index play |
| Record | Automatic Gain Control (AGC) |
| Audio file formats for play/record |
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| Conferencing Features | |
| Total parties per server | 580 |
| Advanced features |
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| Voice Processing Features | |
| Video Codecs | H.263 (Baseline profile up to level 30) |
| Video image formats |
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| Features supported |
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| Play |
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| Record | Stores synchronized voice and video to a file |
| Multimedia file formats |
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| API Support | |
| Call control |
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| Voice processing | R4 voice (dx_) |
| IP media (RTP, QoS, etc.) | R4 IPML (ipm_) |
| Conferencing | R4 conferencing (cnf_) R4 conferencing (dcb_) |
| Continuous Speech Processing | R4 speech (ec_) |
| Fax | R4 fax (fx_) |
| Multimedia | R4 multimedia (mm_) |
| Virtual CT Bus routing | R4 routing (sc_) |
| System Event reporting | R4 SRL (sr_) |
| Virtualization Support | |
| Hypervisors | VMWare ESXi 5.x and 6.x |
| Supported Dialogic HMP Interface Boards (DNI Boards) | |
| Network Interface (DNI Boards) | Single, Dual, Quad and Octal T1/E1 Digital Network Interface (DNI) Boards |
| Analog Interface | 4 Port Analog boards |
| Licensing | |
| Enabling methods | Node-locked using FlexNet licensing utility |
| System Requirements | |
| Hardware | |
| Processor | Intel and AMD processors, including multi-processor, multi-core versions |
| Memory | 8 GB or above recommended for voice applications; 16 GB or above recommended for high density applications |
| Disk Space | 1 GB required for full installation of HMP Windows |
| System | |
| IP-only solutions | Multi-processor, multi-core platforms with an Ethernet NIC (Note: 1000Base-T recommended) |
| Converged solutions | Multi-processor, multi-core PCI platform with an Ethernet NIC and Dialogic HMP Interface Boards (DNI Boards) or gateways |
| Operating System Requirements | |
| HMP Windows is a standalone product and can function with the following operating systems |
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Documentation:
Download the Dialogic PowerMedia HMP for Windows Datasheet (.PDF)