- NGN, IMS
- Softswitch, SIP Application Server
- Media Gateway, Signaling Gateway, SIP Trunking, SBC, WebRTC Gateway
TELECOM/NETWORK
TELECOM/NETWORK
Leverage our 25 years of experience in telecom & network R&D for leading telecom companies worldwide
With more than 1,000 experienced telecom & network engineers, our team can support many different R&D needs of your products & solutions from
Enterprise Communications, Carrier Communications, Broadband Network and EMS/NMS/OSS/BSS to 5G R&D Lab.
Sample Clients
Domains
Enterprise Communications
-
WebRTC:
- Gateway
- Client
-
Rich-Feature SIP PBX:
- Cloud-based
- On-premises
- Hybrid
- Unified Communications Application Server
-
Contact Center:
- Multichannel Interaction
- Routing, Self Service
- Reporting, Analytics, Workforce Optimization
- Universal Networking
- SIP PBX
- Broadsoft interoperability and certification testing
-
Unified Communications
- Integrated Audio/Web/Video Conferencing
- Web Sharing
- Call Recording
-
Unified Messaging:
- Text/Voice/Video IM
- Email/Voicemail/Fax
- Presence
-
IP Phones:
- Wireless phones
- Conference phones
- SIP desk phones
- UNIStim desk phones
-
Soft Clients:
- Mobile soft clients
- Desktop soft clients
Carrier Communications
- NGN:
- WebRTC Gateway
- Softswitch
- SIP Application Servers
- Gateway Controller
- Media Gateway
- Signaling Gateway
- Session Border Controller
- Session Server Trunk
- OAM&P
-
IMS:
- CSCF
- BGCF
- MGCF
- HSS
- SLF
- Application Server
-
4G LTE EPC:
- PGW
- SGW
- MME
- GGSN
- SGSN
-
5G R&D Lab:
- Full operation of 5G core: AMF, SMF, UPF, AUSF, N3IWF,NSSF, NRF, UDM, PCF
- 5G Orchestration
- Operation, Administration and Management (OAM) of 5G Core
- gNodeB in NSA 5G System (with 4G EPC Core)
- gNodeB in Standalone 5G System (with 5G Core)
Networking
-
MOBILE NETWORK:
- Core:
- LTE PGW
- LTE SGW
- LTE MME
- GGSN
- SGSN
-
Metro:
- Backhaul Metro NODE
- Backhaul Metro NID
- Core:
-
FIXED NETWORK:
-
Core:
- Ethernet Routing Switch
- Carrier Edge Router
- BRAS
-
Access:
- BSA, BRAS, BSAN, MSAN
- LAN Core/Access Switches
- Data Center Switch
- DSLAM, DSL Modem
- CMTS, Cable Modem
-
Core:
EMS, NMS, OSS/BSS
-
EMS:
- Equipment & Network Views
- NE Configuration & Profiles
- Alarm Management
- Performance Management
- Software Management
- NE Backup & Restore
- Activity Log
- Health Monitoring
- Security & User Management
- System Administration
-
OSS/BSS:
- Fulfillment
- Inventory and Assurance
- Network Activation
- Element Management and Security
- Policy and Charging Rules Function
- Directory
- Pre-integrated CRM
- Ordering
- Convergent charging & billing
- Dealer capabilities
- Self service
-
NMS:
- Topology Browser and Graphic views
- Network Grouping
- Configuration and Provisioning
- Network Element Auto-Discovery
- Alarm Surveillance & Fault management
- Performance management
- Meter management data
- Diagnostics – Loopbacks test
- Software Download
- Inventory data
- Inband – Outband management network
- Computer Servers management
- Security management
- Remote Local Craft Terminal access
- Northbound Interface to OSS
- High Availability and Geo-Redundancy

Technologies
General Technologies
- Standards: IEEE standards, IETF RFCs, 3GPP, ITU-T recommendations, ANSI recommendations, W3C
- Configurations: IP, ATM, TDM
- Fixed networks: xDSL, FTTx, GPON, Metro Ethernet, Cable Multimedia, POTS
- Mobile networks: 4G (LTE, WiMAX), 3G (EVDO, HSPA), 2G/3G, WiFi, Bluetooth
Telecom Protocols
- Fixed Signaling: SIP, SIPS, SIP-I, SIP-T, H.323, H.248/MEGACO, H.245 Tunneling, H.225 RAS, stateful H.225 and H.245 routing, SS7/CCS7, INAP, ISDN Q.931, V5.2, SIGTRAN (IUA, M3UA, M2UA, M2PA, SUA, V5UA), MGCP, SCCP, UNISTim, Diameter
- LTE Signaling: GTP-C(S11), GTP(S5) [GTPv2-C], GTP(S5) [GTPv1-U], GTPv1-U(S8), GTPv2-C(S5), GTPv1-U(S5), PMIPv6(S5), PMIPv6(S8), GTPv2-C(S8), GTPv1-U(S8), TCP/Diameter(Gx), SCTP/Diameter(Gxc), TCP/DIAMETER(Gy), GTP'(Ga/Gz)
- Media: RTP/SRTP/RTCP, DTLS (TLS over UDP), Audio Codecs (Opus, G.711, G.729, AMR-NB, G.722, AMR-WB,…), Video Codecs (H.264, H.265, VP8,…), T.38, DTMF, ICE, STUN, TURN, Echo Cancellation (G.165, G.168, 0-128ms)
Network Protocols
- IPv4 Routing: Multiple VRF, Static routing with route labeling, RIPv1/v2, OSPF, IS-IS, BGP, GRE, IP/IP tunneling, VRRPv2, DHCPv4 server, DHCP relay, generic UDP relay, ARP, Distributed ARP learning, Policy-based routing and server load balancing.
- IPv6 Routing: Multiple VRF, ICMPv6, Static routing, RIPng, OSPF v3, IS-IS, Multi-Topology IS-IS, MP-BGP, VRRPv3, NDP, DHCPv6 server, Policy-based routing and server load balancing
- IPv4/IPv6 multicast: IGMP v1/v2/v3, PIM-SM, PIM-SSM, PIM-DM, PIM-BiDir, DVMRP, MLD v1/v2.
- MPLS: MPLS, LDP, Policy Core, sFlow , LDP Graceful Restart, LSP Ping, MAC-Forced Forwarding, VPLS using LDP
- Security: MD5, HMAC Message Authentication, RADIUS Authentication and Client MIB, RADIUS Accounting and Client MIB, FTP Security Extensions, RADIUS Extension, PPP EAP, Security Architecture for IP, Encapsulating Payload (ESP) and crypto algorithms
- QoS: Congestion Control, Internet Hosts, DiffServ, Pause Control, srTCM, trTCM
- Network Management: Telnet, FTP, TFTP, SMI v1/v2, SNMP, MIB, MIB-II, SNMP v2 MIB, Convention for SNMP Traps, Private Interface MIB, Ethernet MIB, Form-based File Upload in HTML, SNMP v2c, IP MIB, DHCP Server/Client , Returning Values from Forms: multipart/form-data, URI Generic Syntax, SNMP v3, HTTP and HTML, IP Tunneling MIB, MAU MIB, VLAN MIB, XML Media Types, User-based Security Model , UUID URN Namespace, ABNF, SSH, JSON, Additional HTTP Status Codes