NGN v Next Generation Network NGN is a

NGN v Next Generation Network (NGN) is a service oriented network. v Through the separation of service and call control, the service- independent architecture is implemented, which makes services independent of switching network. v NGN provides integration of voice, data, fax, and video services. 1

NGN (Contd) v 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. v In narrow sense it refers to the open system structure that employs soft switch at the control layer. 2

NGN LAYER ARCHITECTURE Service Management Network Control Core Switch Edge Access 3

NGN Network Architecture 4

System capacity Item Specification Maximum number of supported TDM trunks 360, 000 Maximum number of supported gateways 2, 000 Maximum capacity of supported black and white lists 1, 000 Maximum capacity of supported external prepaid card numbers 1, 000 POTS subscribers: 2, 000 Maximum number of supported subscribers V 5 subscribers: 2, 000 IPN subscribers: 200, 000 IP consoles: 100, 000 Maximum number of supported multimedia terminals SIP terminals: 2, 000 H. 323 terminals: 1, 0005

C 4 OFFICE (PRESENT CONFIGURATION) 6

SOFT SWITCH (SOFTX 3000) v As a Soft. Switch product, Soft. X 3000 is located at the core control layer of NGN scheme. v Soft. X 3000 acts as a generic Call Controller in the packet-switched network, supports the interworking between PSTN, H. 323, SIP, and MGCP domains. v Soft. X 3000 provides H. 248 and MGCP based bearer control. v In the NGN solution of Huawei, Soft. X 3000 acts as the core of NGN, interworking with other NGN components through the open network adopting distributed standard protocols. 7

COMPLETE NETWORK LAYOUT 8

PHYSICAL STRUCTURE OF SOFTX 3000 9

LOGICAL STRUCTURE OF SOFTX 3000 10

Burewala GUjrat Lahore Sialkot Bahawalpur Sargodha Faisalabad Gujranwala Sahiwal Multan TRUNKING DIAGRAM OF NGN MRS IAD Packet Core Network SG 7000 Soft Switch Islamabad Abottabad Mardan Peshawar Bannu Jehlum Karachi Hyderabad Sukkur Quetta 11

UMG E 1 status at LX side S. No UMG Total E 1's (Installed H. W ) Planned E 1's Working E 1 's Pending E 1's Spare E 1'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 E 1 s 2512 1967 1501 466 555 connected & operational 12

UMG 8900 Functionality Features • UMG 8900 supports inter-working between different bearer networks and provides conversion function between different traffic flow formats: – UMG 8900 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, UMG 8900 can act as nextgeneration TDM switch adopting next-generation (NGN) architecture to provide all services of PSTN and achieve smooth evolvement to NGN. 13

UMG 89000 (Cont’d) • • • UMG 8900 serves as TG or AG in NGN or as the traditional PSTN switch and the next-generation switch. In NGN, UMG 8900 is applied in the gateway exchange and toll exchange as large-capacity TG. Through the combined networking with soft switching device , UMG 8900 can provide next-generation TDM switch application. MG 8900 can act as tandem exchange / toll office / gateway exchange / C 5 networking application of PSTN to implement the seamless evolution to NGN. Provides AG function of large capacity via RSP user frame of UMG 8900 accesses user directly. 14

PROTOCOL STACK OF SOFTX 3000 15

Interface Application Protocols Signaling Transmission Protocols Soft. X 3000 -SG SIGTRAN M 3 UA/M 2 UA/SCTP/IP Soft. X 3000 -TMG H. 248 UDP/IP、SCTP/IP、TCP/IP Soft. X 3000 -AMG MGCP UDP/IP Soft. X 3000 -IAD MGCP、H. 248 UDP/IP Soft. X 3000 -MRS MGCP UDP/IP SIP UDP/IP H. 323 UDP/IP、TCP/IP Soft. X 3000 -Soft. Switch SIP UDP/IP Soft. X 3000 -PSTN/ISDN SS 7 MTP Soft. X 3000 -SIP UDP/IP Soft. X 3000 -H. 323 UDP/IP、TCP/IP Soft. X 3000 -NMS MML - Soft. X 3000 -BC FTP or FTAM TCP/IP Soft. X 3000 -Terminal 16

System processing capability Item Specification BHCA of a single service processing module 400 k BHCA of the system 16000 k Call drop rate 0. 01% Calls between intra-domain subscribers: 200 ms Call setup time Calls between both intra-domain subscribers and out-domain subscribers: 500 ms 17

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 18

MULTIMEDIA END OFFICE APPLICATIONS 19

C 5 OFFICE CONFIGURATION 20

Achievements • Implementation of On-line billing in all the exchanges of Switching Zone Islamabad in ZTE B&CC 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. 21

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 UMG’s 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. 22