Glossary

The 3GPP, a body that comprises wireless infrastructure, handset, and service providers throughout the world, has defined the H.324M Protocol as the videoconferencing standard for circuit-switched 3G networks. H.324M is an umbrella protocol defined by the ITU to enable multimedia communication over mobile networks. This protocol defines multimedia communication algorithms ...

Abstract Syntax Notation One, a language used to describe the complex data structures independently from the underlying hardware. ASN.1 is a standard developed by the ITU-T and is described in X.680-X.694. ASN.1 is used in the H.323 and 3G-324M Recommendations in order to describe all the messages that are exchanged ...

H.324 is a circuit switched video telephony protocol specification defined by the ITU and adopted by the 3GPP for mobile video telephony. To learn more about it, see 3G-324M.  

Annex K is a call acceleration technique in 3G-324M. It is also known as MONA (Media Oriented Negotiation Acceleration).It is a set of 3 different techniques for call acceleration which are designed to reduce call setup times to below 1 second.Annex K is designed as a set of 3 classes, ...

PER (Packed Encoding Rules) is an encoding specification for ASN.1 definitions. It is defined in ITU-T X.691 standard. PER is optimized for size, where ASN.1 messages gets encoded into a relatively small size when sent over the network. For example, a boolean field in PER will get encoded using a ...

Mobile handset software architectures are usually separated at their core into two basic layers: baseband and application. The baseband layer tends to be implemented over proprietary or low-level operating systems, while the applications and GUI layers tend to be implemented using higher level operating systems, such as Embedded Linux, Android, ...

WNSRP (Windowed NSRP) is a call setup reduction technique used in 3G-324M. WNSRP speeds up the handling of H.245 messages in 3G-324M by using a windowing mechanism that can send several different messages concurrently. It ensures thatall messages are received and that they appear in the correct order. WNSRPworks in a way ...