Voice over LTE Training - VoLTE Training Course

Voice over LTE Training Course, VoLTE Training Course

Learn about Voice over LTE Implementation alternatives including concepts behind Circuit Switched Fallback (CSFB), Single Radio Voice Call Continuity (SR-VCC) and Voice over IMS, all-IP network, voice and video over IP and rich communication services (RCS) and interoperability across network access methods and operators (LTE, 3G/HSPA, WiFi and legacy telephony domains.


Circuit Switched FallBack (CSFB) is a technology whereby voice and SMS services are delivered to LTE devices through the use of GSM/UMTS or another circuit-switched network.

Circuit Switched FallBack is needed because LTE is a packet-based all-IP network that cannot support circuit-switched calls. When an LTE device is used to make or receive a voice call or SMS, the device "falls back" to the 3G or 2G network to complete the call or to deliver the SMS text message.


Despite the fact that LTE was originally designed as a data network, its quality of service (QoS) and capacity gains also provide subscribers and operators with significant additional benefits for voice services, such as HD voice, enhanced video capabilities, and rich communication offerings.

in CSFB:

• Device is registered for both CS and PS services via LTE
• CS voice pages are delivered over LTE
• Device remains on LTE except for voice calls
• SMS can be received over LTE
• For voice calls, UE falls back to UMTS/GSM/C2K

SRVCC applies to the scenario that LTE  coverage is not continual SRVCC applies to multi-mode single radio UE. SRVCC is essentially a handover procedure,  including transport level handover and session  level handover. Considering the impacts to the networks  introduced, SRVCC is not recommended until  LTE becomes middle level coverages. SRVCC requires deployment of IMS network.



To learn more, visit us at LTE Training Page.

VoLTE Single Radio Voice Call Continuity (SRVCC)

What is Single Radio Voice Call Continuity (SRVCC)?


SRVCC is an LTE functionality that allows a VoIP/IMS call in the LTE packet domain to be moved to a legacy voice domain (GSM/UMTS or CDMA 1x).

Consider a case where a new LTE network operator wants to move voice services to VoIP over IMS in conjunction with the deployment of an LTE access network. In the absence of other options, this operator would need to provide ubiquitous LTE coverage on day 1 to have a competitive VoIP service. However SRVCC enabled LTE may not require complete LTE coverage. 

Learn more LTE Training 

 

VoLTE Training Course

VoLTE as the Technology of Choice for LTE Voice Transmission and SMS

 GSM Association IR.92 specifications highlight specific standards to deliver voice and SMS services over an LTE network with IMS (IP Multimedia Sub-systems).  WiFi as an “offload” is also an interesting concepts for many operators. VoLTE is essentially VoIP over 4G/LTE using IMS architecture.

In order for LTE UE to establish a voice call over IMS, the following steps are essential:

• UE RRC Connection Request to EPC & IMS
• PDN Connectivity Request 
• Protocol Configuration Options IE 
• P-CSCF address
• EPS Attach & P-CSCF Discovery
• UE initial IMS registration

KEY TECHNICAL REQUIREMENTS FOR VoLTE ARE:

• PCC rule authorization and QoS rule generation
• Multiple Bearers (Default, Dedicated)
• QoS Class Identifiers (QCIs)  
• Semi-Persistent Scheduling
• Transmission Time Interval (TTI) Bundling
• Discontinuous Reception (DRX)
• Robust Header Compression (RoHC)

COMMON RTP PAYLOAD TYPES FOR VOLTE ARE:

• Audio AMR 8000
• Audio AMR-WB 16000
• Text T140 1000
• Video H.263 90000
• Audio EVRCB 8000
• Audio EVRCWB
• Video H.263-2000 90000
• Video H.263-2000 90000
• Video H.264
• Video MP4V-ES 90000 

Technical Writing Training

Learn how to write clear, concise, and effective technical documents such as user manuals, technical white papers, specifications and technical report

Technical Writing Course will teach you the techniques and skills to communicate and  describe complicated or technical material to end users and stakeholders. 

This course provides a framework and a process for planning, specifying, writing, and editing technical documents including technical specifications.

This course will teach you the skills you need to become a technical writer. 

Learn how to:

• Translate complex information into easily understood language
• Discover secrets of successful  technical writing conventions, interviewing skills, desktop publishing,  and formatting techniques.

Negotiation Training

Most of us, irrespective of our specialty, must negotiate. Attend Negotiation Training Workshop to learn Effective Negotiation Skills

This Negotation Training Workshop, by combining theory, practice, and games aims to improve both the participants' understanding of negotiation and their effectiveness as negotiators.

• Customized training
• Expert instructors
• Negotiation games
• Interactive style





RF Training approved for Continuing Education Units (CEU)

Get Trained in RF Technology and Earn 13 PDH approved by Professional Engineers by PIE (Practicing Institute of Engineering, Inc.) for CEU.

RF Training Fundamentals qualifies for Continuing Education Units (CEU) and for the acceptance of Professional Development Hours (PDH) activities submitted by PE’s for Continuing Professional Competency (CPC) credit.

Learn RF and get 13 PDF from PIE applied to CEU. RF Training Fundamentals will cover:

• RF 101
• RF Theory of Operation
• RF Propagation Models and Their Uses
• Link Budget 
• Modulation
• Antenna 
• RF System Design Considerations
• RF Safety
• RF Regulatory 

NFC-Near-Field-Communications

What is NFC (Near Field Communications)?

NFC or Near Field Communication, is a short range wireless evolved from RFID technology that makes use of electromagnetic radio fields instead of the typical direct radio transmissions used by technologies such as Bluetooth.

 It is meant for applications where a physical touch, or close to it, is required in order to maintain security. NFC is planned for use in mobile devices for marketing, payment, in conjunction with an electronic wallet, and for setting up connections between 

NFC creates a new and universal interface to existing devices through simple touch interaction.

All NFC transactions take place within a very small area, from a touch to 4 centimeters.  

NFC is able to replace the pairing of Bluetooth-enabled devices, or the configuration of a Wi-Fi network through PINs and keys, by simply touching the two devices to be paired or connected to the network, or by touching the device to a tag.