What is MMTel as?

What is MMTel as?

A mobile telephony application server (mobile TAS), sometimes known as an MMTel-AS, is a component used in the core network of a mobile network operator to provide telephony applications and additional multimedia functions to mobile devices.

What are MMTel services?

The 3GPP/NGN IP Multimedia Subsystem (IMS) multimedia telephony service (MMTel) is a global standard based on the IMS, offering converged, fixed and mobile real-time multimedia communication using the media capabilities such as voice, real-time video, text, file transfer and sharing of pictures, audio and video clips.

What is MTAS in IMS?

Ericsson Multimedia Telephony Application Server (MTAS) is a carrier-class application server for voice and multimedia, providing cost-efficient services for next-generation mobile and fixed networks.

Which node provides the supplementary services in CS core?

The 3G-MSC is the main CN element to provide CS services. The 3G-MSC also provides the necessary control and corresponding signaling interfaces including SS7, MAP, ISUP (ISDN user part), etc. The 3G MSC provides the interconnection to external networks like PSTN and ISDN.

Which node executes the MMTel services?

The Basic call state machine is the state machine that’s instantiated in the MMTel-AS and that’s executing the MMTel service logic, i.e. the multimedia call. The Communication connectivity state machine refers to the SIP session state machine being executed in the IMS network for this (multimedia) call.

What is Impu in IMS?

IMS Public User Identity. The Public User Identity is the means by which a subscriber of an IMS service is identified by other users of the service. For example, in VoLTE, the IMPU typically contains a representation of the subscriber’s telephone number. This could be in a SIP or Tel URI format.

What is Impu and Impi?

IP Multimedia Private Identity (IMPI): IMPI is a global identity allocated by the home network. IMPI contains home operator’s domain information. Home operator’s domain name. IP Multimedia Public Identity (IMPU): IMPU acts like a telephone number. It can either be a SIP URI (sip: @ : ) or a tel URI.

What is VoLTE and VoLTE architecture?

The VoLTE logical architecture is based on the 3GPP defined architecture and principles for VoLTE UE, Long Term Evolution (LTE), Evolved Packet Core network (EPC), and the IMS Core Network.

What is ISIM and USIM?

USIM – Universal Subscriber Identity Module. ISIM – IP Multimedia Services Identity Module. ISIM and USIM are applications which run in your simcard. Both application are responsible (among other things) to perform security procedures such as authenticate the network.

What is LTE IMS vs LTE internet?

LTE is actually a wireless broadband technology developed to support roaming Internet access using mobile phones. IMS is more of an architectural framework designed to support IP multimedia services and has been around for some time.

Why IMS is required for VoLTE?

Voice over LTE (VoLTE) requires IMS (IP Multimedia Subsystem) to work with the 4G LTE core network, Evolved Packet Core (EPC), to combine IP telephony with data communication so that rich communication services can be delivered over the IP network.

What does MMTel stand for?

The 3GPP / NGN IP Multimedia Subsystem (IMS) multimedia telephony service ( MMTel) is a global standard based on the IMS, offering converged, fixed and mobile real-time multimedia communication using the media capabilities such as voice, real-time video, text, file transfer and sharing of pictures, audio and video clips.

What is a mobile telephony application server (mobile TAS)/MMTel-as?

What is a mobile telephony application server (mobile TAS) / MMTel-AS? A mobile telephony application server (mobile TAS), sometimes known as an MMTel-AS, is a component used in the core network of a mobile network operator to provide telephony applications and additional multimedia functions to mobile devices.

What is the difference between MMTel and circuit switched telephony?

One of the main differences with the MMTel standard is that, in contrast of legacy circuit switched telephony services, IP transport is used over the mobile access.

What does MMTel-as stand for?

A mobile telephony application server (mobile TAS), sometimes known as an MMTel-AS, is a component used in the core network of a mobile network Read More