H.248: Difference between revisions
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Also known as Megaco, H.248 is a protocol for controlling media gateways via a [[Softswitch|softswitch]] or a [[Media gateway controller|media gateway controller]]. | Also known as Megaco, H.248 is a protocol for controlling media gateways via a [[Softswitch|softswitch]] or a [[Media gateway controller|media gateway controller]]. | ||
<br> | |||
== TelcoBridges and H.248 == | == TelcoBridges and H.248 == | ||
[[Toolpack]] now supports the H.248 protocol. | |||
As indicated in the diagram below, the H.248 stack is a module in the media gateway application residing on the application server. It communicates with the various Toolpack classes (CAFClass, [[CMC library|CMC Library]], CMC Class) as required via a new [[CAF: Working With Call Legs|Media Leg API]]. In turn, the media gateway application communicates with the softswitch / media gateway controller via the H.248 protocol. | |||
[[Image:H.248 schematic.jpg|H.248 schematic.jpg]] | <br> [[Image:H.248 schematic.jpg|H.248 schematic.jpg]] | ||
<br> | |||
=== H.248 package support === | === H.248 package support === | ||
*'''H.248.1''' | [[Toolpack]] supports the following packages. | ||
**Protocol v2 | |||
**IPSec connection support | *'''H.248.1''' | ||
**Protocol v2 | |||
**IPSec connection support | |||
**Support UDP (2944 or user-defined) | **Support UDP (2944 or user-defined) | ||
<br> | |||
*'''H.248.1 - Basic packages''' | *'''H.248.1 - Basic packages''' | ||
**Generic | **Generic | ||
**Base Root | **Base Root | ||
**Tone generator (for extension purposes only) | **Tone generator (for extension purposes only) | ||
**Tone detection (for extension purposes only) | **Tone detection (for extension purposes only) | ||
**Basic DTMF generation | **Basic DTMF generation | ||
**DTMF detection | **DTMF detection | ||
**Call Progress Tones Generator | **Call Progress Tones Generator | ||
**Basic continuity package | **Basic continuity package | ||
**Network package | **Network package | ||
**RTP package | **RTP package | ||
**TDM Circuit package | **TDM Circuit package | ||
<br> | |||
*'''H.248.2 Facsimile, text conversation and call discrimination packages''' | *'''H.248.2 Facsimile, text conversation and call discrimination packages''' | ||
**Fax/TextPhone/Modem tones detection (fax and data only) | **Fax/TextPhone/Modem tones detection (fax and data only) | ||
**Call type discrimination package (fax and data only) | **Call type discrimination package (fax and data only) | ||
**IP Fax (Event: Fax Connection Change - end of fax session, call terminating) | **IP Fax (Event: Fax Connection Change - end of fax session, call terminating) | ||
<br> | |||
*'''H.248.4 Transport over Stream Control Transmission Protocol (SCTP)''' | *'''H.248.4 Transport over Stream Control Transmission Protocol (SCTP)''' | ||
<br> | |||
*'''H.248.7 Generic announcement package''' | *'''H.248.7 Generic announcement package''' | ||
**Generic announcement package | **Generic announcement package | ||
<br> | |||
*'''H.248.10 Media gateway resource congestion handling package''' | *'''H.248.10 Media gateway resource congestion handling package''' | ||
**Congestion handling package | **Congestion handling package | ||
<br> | |||
*'''H.248.11 Media gateway overload control package''' | *'''H.248.11 Media gateway overload control package''' | ||
**Overload control package | **Overload control package | ||
<br> | |||
*'''H.248.13 Quality alert ceasing package''' | *'''H.248.13 Quality alert ceasing package''' | ||
**Quality alert ceasing package | **Quality alert ceasing package | ||
<br> | |||
*'''H.248.14 Inactivity timer package''' | *'''H.248.14 Inactivity timer package''' | ||
**Inactivity timer package | **Inactivity timer package | ||
== Additional details == | == Additional details == | ||
*Support for text mode only | |||
*Support for text mode only | |||
*Not supported on Solaris builds | *Not supported on Solaris builds | ||
== References == | == References == | ||
*[[Toolpack_v2.5:Configure_the_Media_Gateway_for_H248_Mode|Configuring H.248 on TMG devices]]<br> | |||
*[http://en.wikipedia.org/wiki/Megaco Wikipedia article] | *[http://en.wikipedia.org/wiki/Megaco Wikipedia article] | ||
[[Category:Glossary]] [[Category:Tmedia_Features|H.248/Megaco]] [[Category:RevisionV2]] | |||
[[ | |||
[[Category:Tmedia_Features|H.248/Megaco]] | |||
[[Category:RevisionV2]] | |||
Revision as of 08:57, 19 April 2012
Also known as Megaco, H.248 is a protocol for controlling media gateways via a softswitch or a media gateway controller.
TelcoBridges and H.248
Toolpack now supports the H.248 protocol.
As indicated in the diagram below, the H.248 stack is a module in the media gateway application residing on the application server. It communicates with the various Toolpack classes (CAFClass, CMC Library, CMC Class) as required via a new Media Leg API. In turn, the media gateway application communicates with the softswitch / media gateway controller via the H.248 protocol.
H.248 package support
Toolpack supports the following packages.
- H.248.1
- Protocol v2
- IPSec connection support
- Support UDP (2944 or user-defined)
- H.248.1 - Basic packages
- Generic
- Base Root
- Tone generator (for extension purposes only)
- Tone detection (for extension purposes only)
- Basic DTMF generation
- DTMF detection
- Call Progress Tones Generator
- Basic continuity package
- Network package
- RTP package
- TDM Circuit package
- H.248.2 Facsimile, text conversation and call discrimination packages
- Fax/TextPhone/Modem tones detection (fax and data only)
- Call type discrimination package (fax and data only)
- IP Fax (Event: Fax Connection Change - end of fax session, call terminating)
- H.248.4 Transport over Stream Control Transmission Protocol (SCTP)
- H.248.7 Generic announcement package
- Generic announcement package
- H.248.10 Media gateway resource congestion handling package
- Congestion handling package
- H.248.11 Media gateway overload control package
- Overload control package
- H.248.13 Quality alert ceasing package
- Quality alert ceasing package
- H.248.14 Inactivity timer package
- Inactivity timer package
Additional details
- Support for text mode only
- Not supported on Solaris builds