Uniqall Gridborg HMP 1.2

HMP - Host Media Processing
(stable version)

Agenda

There are several goals for the 1.2 incarnation of the Gridborg HMP:

• Move from OpenH323 to its successor Opal
• Addition of SIP 2.0 capabilities (including support for SIP registrar and SIP proxy)
• Addition of T.38 Fax Relay capabilities
• Addition of Ring-back tones support
• Addition of Per-identity root directories
• Addition of Per-identity port and resource limitations
• Making of all new technologies available through Gridborg HMP Envox driver, too
• Addition of simple, web-based user interface

Status

Version 1.2.9 - 2007/04/16 - patch6

Version 1.2.8 - 2006/12/27 - patch5

Version 1.2.7 - 2006/10/30 - patch4

Version 1.2.6 - 2006/10/09 - patch3

Version 1.2.5 - 2006/08/25 - patch2

Version 1.2.4 - 2006/08/02 - patch1

Version 1.2.3 - 2006/06/05 - release

Version 1.2.2 - 2006/04/10 - beta 3

Version 1.2.1 - 2006/03/27 - beta 2

Version 1.2.0 - 2006/02/13 - beta 1

Application Interfaces (APIs)

Gridborg HMP Protocol

All call control and media processing related communication between the Gridborg HMP Server and Gridborg HMP client applications goes over TCP/IP through simple plain text Gridborg HMP Protocol.

Gridborg HMP Protocol enables computer telephony developers to use virtually any programming or scripting language in order to develop voice/fax/conferencing applications.

If you are an old-school developer with habit to use C/C++ APIs consider Gridborg HMP Protocol as an advantage. Instead of being locked in someone's else legacy API (or even worse and more often, numerous legacy APIs inherited through multiple product/company acquisitions) this time you get freedom and opportunity to write your very own one, tailored to fit your particular needs :).

If you are interested in developing applications for Gridborg HMP Protocol please see Gridborg HMP Protocol documentation.

Gridborg HMP Envox driver

Gridborg HMP Envox driver has two faces:

Toward the Gridborg HMP Server, it acts as a standard Gridborg HMP client application. In turn, the Gridborg HMP Server is completely unaware of even mere existence of the Gridborg HMP Envox driver. It is just another Gridborg HMP Protocol based client application.

Toward Envox, it acts as any other telephony boards driver. In turn Envox is completely unaware that the Gridborg HMP Server is software only (Host Media Processing) solution that may even not reside on the same PC. It is just another telephony board integrated through the Envox Hardware API.

Following Envox 6.3 telephony blocks are supported:

• WaitCall, ReleaseCall, MakeCall
• Play, PlayToMemory, PlayMenu, Record
• VoiceXML
• ReceiveFax, SandFax, DocList
• MakeGroup, DeleteGroup, AddToGroup, LeaveGroup, ModifyType, GetActiveTalkers, GetMembers
• Route, UnRoute
• CallTransfer, CallHold
• ReserveResource, FreeResource

Following Envox 6.3 telephony block is partially supported:

• DialNumber - only DTMF mode is supported

Following Envox 6.3 telephony blocks are not supported:

• LineMonitor, SetVolume, SetMWI, GetPBXInfo, SendUUI, SendIE

The nature of Envox Hardware API allows the Gridborg HMP to be unaware of TTS & ASR engines integrated with Envox. It means that all third party TTS & ASR engines already integrated or to be integrated with Envox in the future do seamlessly work in combination with the Gridborg HMP, too. In due course, media streams are streamed back and forth between the Gridborg HMP Server and the Gridborg HMP Envox driver. In order to ensure low latency that is necessary for ASR purposes multiplexing of media streams in packets is implemented.

In most cases no modifications of Envox scripts are required. However, in some rare cases minor script modifications may be needed.

Features

Call Control:

• SIP 2.0
• H.323 v.4, H.450.2, H.450.3

Codecs Supported:

Codec Name	Frame Size (ms)	Frame Size (bytes)	Bit rate (b/s)
G.711 u-Law 64k	5-30	40-240	64000
G.711 A-Law 64k	5-30	40-240	64000
G.711 u-Law 56k	5-30	35-210	56000
G.711 A-Law 56k	5-30	35-210	56000
GSM 06.10	20	33	13200
MS-GSM	40	65	13200
MS-IMA-ADPCM	63.13	256	32000
LPC-10 (FS-1015)	22.50	7	2400
SpeexNarrow 18.2k	20		18200
SpeexNarrow 15k	20		15000
SpeexNarrow 11k	20		11000
SpeexNarrow 8k	20		8000
SpeexNarrow 5.95k	20		5950
G.726 16k	sample		16000
G.726 24k	sample		24000
G.726 32k	sample		32000
G.726 40k	sample		40000
iLBC 13.3k	30	50	13300
iLBC 15.2k	20	38	15200

Application Interfaces:

• Gridborg Protocol 2.0, 2.1
• Envox 5.1, 5.2, 6.0, 6.1, 6.2 & 6.3 (VoXML enabled)

Voice Processing (Audio Processing):

• Play
• Record (including Transaction Recording)
• DTMF generation & detection
• AGC / Normalization

Audio File Formats Supported:

Formats:

• RAW (Headerless)
• WAV (Wave)
• VAP (Envox's)

Codecs:

• PCM, 16-bit
• PCM, 8-bit
• u-law, 8-bit
• A-law, 8-bit
• ADPCM4, 4-bit
• MSADPCM4, 4-bit
• GSM 6.10

Voice Conferencing (Audio Conferencing):

• Unlimited number of voice conferences (audio conferences)
• Unlimited number of conferencing parties
• Talk / Listen, Listen only, Coach & Pupil modes
• DTMF detection & generation
• DTMF clamping
• Active Talker notifications (including subscriptions / event notifications streaming)

Fax:

T.38 Fax:

• T.38 Fax Origination
• T.38 Fax Termination
• T.38 Fax Pass-through
• T.38 Fax Relaying

Formats:

• TIFF
• JPEG
• PNG
• GIF
• BMP

Image manipulation:

• Re-scaling
• Cropping
• Conversion To Black&White

Multi-user support:

• Unlimited number of users
• Authentication
• Per-identity root directories
• Per-identity port and resource limitations

SIP Interoperability:

Should be interoperable with all SIP phones, softphones, gateways, registrars and proxies.

So far tested with following SIP softphones:

• KPhone
• Linphone
• X-Lite (CounterPath)
• SJPhone (SJ Labs)
• Ekiga (ex GnomeMeeting)

So far tested with following SIP gateways:

• Cisco ATA-186
• Planet VIP-260
• Cisco-SIPGateway/IOS-12.X

So far tested with following SIP registrars/proxies:

• Siproxd

H.323 Interoperability:

Should be interoperable with all H.323 phones, softphones, gateways and gatekeepers.

So far tested with following H.323 phones:

• Planet VIP-101T

So far tested with following H.323 softphones:

• Microsoft NetMeeting
• MyPhone
• SJPhone (SJ Labs)
• Ekiga (ex GnomeMeeting)

So far tested with following H.323 gateways:

• Cisco 5300
• Cisco 1760-V
• Cisco ATA-186
• Planet VIP-000
• Audiocodes MP-102

So far tested with following H.323 gatekeepers:

• GNU Gk
• Open Gk
• MS ISA server

T.38 Interoperability:

So far tested with following T.38 gateways:

• Planet VIP-000
• Planet VIP-260

OSs Supported:

Gridborg HMP Server:

• Linux (Debian, RedHat, Suse, Ubuntu)
• Windows 2000, Windows Server 2003, Windows XP

Gridborg HMP Envox driver:

• Windows 2000, Windows Server 2003, Windows XP

Processors Supported:

• x86 architecture (both Intel & AMD)