ntl voice manual

7/28/2019 NTL Voice Manual

1/17

NGN Telephony - HandbookGN Telephony - HandbookReady for today - Perfect for tomorrow

Vo ic e

So lu t o n s i


2/17


3/17

1. Introduction

The emergence of Next Generation Network (NGN) solutions has had a significant impact on the way businessesdeploy telephony services. Recent advances in networking technology has stepped up the industrys shift fromPSTN towards Voice over IP (VoIP) based services.

Nayatel (Pvt) Ltd. being a facilities based carrier provides converged Triple Play services (Voice, Video, andData) on Pakistan's first Fiber-to-the-user (FTTU) network. Nayatel's Next-Generation-Network (NGN) is new,evolution-oriented; telecommunication network architecture based on packet transport and dedicated controland service layers. The objective of NGN is to have a single network for all telecommunication services toprovide high efficiency and multi-services. It supports legacy applications of Plain Old Telephony System (POTS)and also new and enriched applications of future like real time video telephony, etc. In terms of quality of service, it provides top notch quality service, high quality voice, no dropped calls and enhanced voice features.

Nayatel NGN telephony hand book is particularly designed to give you insight into application scenarios of NGNtelephony services in corporate environment. The information would hopefully be beneficial for customerorganizations to access their corporate telephony needs and Nayatels contribution to compliment value of their business operations.

Marketing DepartmentNayatel (Pvt) Ltd.

NGN Technology: A step forward for corporate sector

[1]

Copyright 2008, Nayatel (Pvt) Ltd. - All Rights Reserved


4/17


5/17


6/17

Nayatel Hosted Exchange Solution

A. WLAN Mobiles connectivity

w Allows users to commute easily in officepremises and receive calls on their mobilephones with in WiFi network range

w Make calls using office exchange withoutusing GSM network

w Requirement: Wireless Access Point(connected with Ethernet Switch), SIPenabled handsets/mobile phones

Following diagrams highlights application scenarios for Nayatel Hosted Exchange solution at customer premises .

Figure 2.2

2c. Hosted Exchange Application Scenarios

[4]



7/17


B. Analog Telephony Adapter (ATA)

w ATA interface with the switch allows users toconnect conventional analogue phone setsinstead of using IP phones

ATA is a device used to connect one or morestandard analog telephones to a Voice over IP based network. An ATA usually takes the formof a small box with a power adapter, oneEthernet port. Users can plug one or morestandard analog telephone devices into the

ATA and the analog device(s) will operatetransparently on a VoIP network.

Figure 2.3 a

Hosted Exchange Application Scenarios

[5]



8/17


Figure 2.3 b


[6]

B. Analog Telephony Adapter (ATA)

w Analog Telephony Adapter (ATA) can directlybe connected with your ONT (Ethernet Port),allowing you to connect analog telephonesets. (Equivalent to ports available in ATA)



9/17


C. Internet & voice integration 1

w In above mentioned scenario contact center employees can use their PC for data andvoice applications simultaneously.

w Customers can use soft phones (Nayatel verified) to make and receive calls via theirdesktop using wired internet, and internet can be used via WiFi network

w Data and VoIP networks are physically or virtually (VLAN) separated. A separate virtualLAN is recommended for better voice quality

Figure 2.4


[7]



10/17


Figure 2.5

D. Internet & Voice Integration 2

w Under this scenario, employeesPCs can directly be connected withIP phone's Ethernet Port

w To execute this scenario, IP phonemust support VLAN taggingcapability (voice/data packets are

tagged with different VLAN IDs tosegregate the traffic)


[8]



11/17


Figure 2.6

E. Interoffice communication (without local call charges)

w Fiber connectivity is required at both ends (P2P link)w The feature allows the users (Location A&B) to commute with extensions/IP phones at both

ends/ locations without bearing local call chargesw Nayatel virtual PBX (Nayatel Data Center) is shared between both locations


[9]



12/17

3. Session Initiation Protocol

A. SIP (Session Initiation Protocol)

w The Session Initiation Protocol (SIP) is an application-layer control (signaling) protocol forcreating, modifying, and terminating sessions with one or more participants. It can be used tocreate two-party, multiparty, or multicast sessions that include Internet telephone calls,multimedia distribution, and multimedia conferences.

A. SIP Architecture

Figure 3.1

[10]



13/17


14/17

Session Initiation Protocol

B. SIP Interoffice communication (without local call charges)

w Fiber connectivity is required at both ends (P2P link)w The feature allows the users (Location A&B) to commute with extensions/IP phones at both

ends/ location without bearing local call cost

Figure 3.2

[12]

B. SIP Interoffice Communication



15/17

4. Primary Rate Interface (PRI)

A. PRI

w Calls from PSTN/Cellular networks terminate at Nayatel NGN Switchw Calls are then forwarded at PBX (situated at customer premises)w IP Mux is used as an interface between ONT (optical Network Terminal) and PBX, to convert

circuit switching into VoIP and vice versaw PRI provides 30 dedicated voice channels over a single physical linkw All outgoing calls from customer's PBX through Nayatel's IP Network are received at NGN

switch, and further routed to interconnect networks

A. PRI Architecture

Figure 4.1

[13]



16/17

Primary rate Interface (PRI)

w Fiber connectivity is required at both ends (P2P link)w The feature allows the users (Location A&B) to commute with extensions/IP phones at bothends/locations without bearing local call charges.

Figure 4.2

[14]

B. PRI Interoffice Communication

D. PRI Interoffice Connectivity



17/17

5. Customer Services

In case you need further information on Nayatel's NGN telephony solutions and their adaptability in yourorganization, or if your would like our customer service representative to guide you of a particular servicefeature or to assess your needs, please contact by either of the following means;

Email

Marketing:[email protected]:[email protected] Information:..... [email protected] Support:[email protected]

Website

http://www.nayatel.comNGN telephony section on Nayatel's web portal provides complete overview on FTTUvoice portfolio, service features, FAQs, and tariff etc.

In case you need further information and guidance on NGN Telephony services, you canalso submit the online information request form.

Telephone

UAN: (+92 51) 111 11 44 44

Fax:

(+92) 51 8310100

Corporate Office

Nayatel Pvt. Ltd. GD Arcade, 73-E, Fazal-ul-Haq Road, Blue Area, Islamabad, Pakistan.44000

C ight 2008 N t l (P t) Ltd All Right R d

ntl voice manual

Documents