NGN

1
NGN

• Next Generation Network (NGN) is a service
  oriented network.
• Through the separation of service and call
  control, the service- independent architecture is
  implemented, which makes services independent of
  switching network.
• NGN provides integration of voice, data, fax, and
  video services.

2
NGN (Contd)

• In broad sense it refers to the next generation
  integrated network that adopts new technologies
  extensively, focuses on IP, and provides voice,
  data, and multimedia service at the same time.
• In narrow sense it refers to the open system
  structure that employs soft switch at the control
  layer.

3
NGN LAYER ARCHITECTURE
Service Management
Network Control
Core Switch
Edge Access
4
NGN Network Architecture
5
System capacity
Item Specification
Maximum number of supported TDM trunks 360,000
Maximum number of supported gateways 2,000,000
Maximum capacity of supported black and white lists 1,000,000
Maximum capacity of supported external prepaid card numbers 1,000,000
Maximum number of supported subscribers POTS subscribers 2,000,000
Maximum number of supported subscribers V5 subscribers 2,000,000
Maximum number of supported subscribers IPN subscribers 200,000
Maximum number of supported subscribers IP consoles 100,000
Maximum number of supported multimedia terminals SIP terminals 2,000,000
Maximum number of supported multimedia terminals H.323 terminals 1,000,000
6
C4 OFFICE (PRESENT CONFIGURATION)
7
SOFT SWITCH (SOFTX 3000)

• As a SoftSwitch product, SoftX3000 is located
  at the core
• control layer of NGN scheme.
• SoftX3000 acts as a generic Call Controller
  in the
• packet-switched network, supports the
  interworking
• between PSTN,H. 323, SIP, and MGCP
  domains.
• SoftX3000 provides H. 248 and MGCP based
  bearer
• control.
• In the NGN solution of Huawei, SoftX3000 acts
  as the
• core of NGN, interworking with other NGN
  components
• through the open network adopting
  distributed standard
• protocols.

8
COMPLETE NETWORK LAYOUT
9
PHYSICAL STRUCTURE OF SOFTX 3000
10
LOGICAL STRUCTURE OF SOFTX 3000
11
TRUNKING DIAGRAM OF NGN
12
UMG E1 status at LX side
S.No UMG Total E1's (Installed H.W ) Planned E1's Working E1 's Pending E1's Spare E1's Status
1 Islamabad 308 290 205 85 28 connected operational
2 Karachi 288 283 244 39 5 connected operational
3 Abbotabad 64 26 18 8 38 connected operational
4 Bahawalpur 96 84 28 56 12 connected operational
5 Bannu 64 19 14 5 45 connected operational
6 Burewala 64 29 29 0 35 connected but not tested
7 Faisalabad 160 120 110 10 40 connected operational
8 Gujrat 64 54 19 35 10 connected operational
9 Gujranwala 128 76 38 38 52 connected operational
10 Hyderabad 64 64 52 12 0 connected operational
11 Jehlum 64 16 16 0 48 connected operational
12 Lahore 476 402 340 62 74 connected operational
13 Mardan 64 28 28 0 36 connected operational
14 Multan 128 101 79 22 27 connected operational
15 Peshawar 128 124 100 24 4 connected operational
16 Quetta 96 67 48 19 29 connected operational
17 Sahiwal 64 41 25 16 23 connected operational
18 Sialkot 64 58 46 12 6 connected but not tested
19 Sukkur 64 46 43 3 18 connected operational
20 Sargodha 64 39 19 20 25 connected operational
  Total E1s 2512 1967 1501 466 555 connected operational
13
UMG 8900 Functionality Features

• UMG8900 supports inter-working between different
  bearer networks and provides conversion function
  between different traffic flow formats
• UMG8900 can server as Trunk Gateway (TG)
• Act As Access Gateway (AG) in NGN network
• Support Embedded Signaling Gateway (SG) function
  simultaneously.
• By networking with soft switching devices,
  UMG8900 can act as next-generation TDM switch
  adopting next-generation (NGN) architecture to
  provide all services of PSTN and achieve smooth
  evolvement to NGN.

14
UMG 89000 (Contd)

• UMG8900 serves as TG or AG in NGN or as the
  traditional PSTN switch and the next-generation
  switch.
• In NGN, UMG8900 is applied in the gateway
  exchange and toll exchange as large-capacity TG.
• Through the combined networking with soft
  switching device , UMG8900 can provide
  next-generation TDM switch application.
• MG8900 can act as tandem exchange / toll office /
  gateway exchange / C5 networking application of
  PSTN to implement the seamless evolution to NGN.
• Provides AG function of large capacity via RSP
  user frame of UMG8900 accesses user directly.

15
PROTOCOL STACK OF SOFTX 3000
16
Interface Application Protocols Signaling Transmission Protocols
SoftX3000-SG SIGTRAN M3UA/M2UA/SCTP/IP
SoftX3000-TMG H.248 UDP/IP?SCTP/IP?TCP/IP
SoftX3000-AMG MGCP UDP/IP
SoftX3000-IAD MGCP?H.248 UDP/IP
SoftX3000-MRS MGCP UDP/IP
SoftX3000-Terminal MGCP UDP/IP
SoftX3000-Terminal SIP UDP/IP
SoftX3000-Terminal H.323 UDP/IP?TCP/IP
SoftX3000-SoftSwitch SIP UDP/IP
SoftX3000-PSTN/ISDN SS7 MTP
SoftX3000-SIP SIP UDP/IP
SoftX3000-H.323 H.323 UDP/IP?TCP/IP
SoftX3000-NMS MML -
SoftX3000-BC FTP or FTAM TCP/IP
17
System processing capability
Item Specification
BHCA of a single service processing module 400k
BHCA of the system 16000k
Call drop rate ? 0.01
Call setup time Calls between intra-domain subscribers ? 200 ms
Call setup time Calls between both intra-domain subscribers and out-domain subscribers ? 500 ms
18
Services Functions

• SERVICES
• Voice Services
• IP Centrex Services
• Multimedia Services
• IPN Services
• IN based Value Added Services
• FUNCTIONS
• Support for Multi-Country-Code and
  Multi-Area-Code Functions
• Support for Multi-Signaling-Point-Code Function
• Support for Dual-Homed Host Function
• Support for Gateway Office Functions
• Support for IP Supermarket Function

19
MULTIMEDIA END OFFICE APPLICATIONS
20
C5 OFFICE CONFIGURATION
21
Achievements

• Implementation of On-line billing in all the
  exchanges of Switching Zone Islamabad in ZTE BCC
  project.
• Testing / Commissioning of NGN expansion phase.
• Testing / Commissioning of Signaling gateway at
  NGN for IP PPC services through FIN (fix IN)
• Testing /Commissioning of MRS for the provision
  of IVRs for IP PPC services through FIN (fix IN)
• Improvement of ASR in national directions by the
  augmentation of long haul media after a detail
  traffic analysis.
• Reduction of congestion point on local as well as
  nation wide directions.
• Termination of .25 (M) IP calls per day on NGN
  platform.

22
Ongoing Issues

• NGN status is currently under PAT
• PAT of Softx 3000, UMG 8900,SG 7000 MRS has
  been completed. Discrepancy list comprising of
  Non Service affecting some deficient features
  has already been forwarded to the vendor through
  Dig Dev wing.
• Connectivity with some UMGs is still pending due
  to Media/hardware unavailability at the far end
  (LX side).
• Extension of NGN NMS room is required. Several
  civil works need to be done.