By developing high-rated Telecom applications in more than 20 years, TMA has provided customers with End-to-End Services & Available Solutions for market readiness acceleration. 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.
  • 25 years of Experiences in Telecom Software & Solution Services
  • 1,800 engineers
  • R&D Centers for leading companies


Providing high-quality end-to-end services of Telecom is what makes TMA remarkable in the technology market:

Testing services

  • Product verification
  • Solution verification
  • Automation test

R&D services

  • Prototyping
  • Product planning
  • Product development


  • DevOps
  • UX/UI design
  • Solutions consulting
  • Proof of concept
  • Customer Support

Domains of Expertise

With many years of experience, TMA engineers possess a wide range of expertise in various Telecom domains.


  • 400 Wireless engineers
  • 5G Orchestration
  • 5G Open RAN: O-CU, O-DU, NearRT RIC
  • 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)


  • 200 Cloud engineers
  • VNFM, LTE MANO, 5G Core, VNFs, UCaaS, CPaaS, CCaaS, STaaS (SIP Trunk as a Service)

NGN Network Transformation

  • 300 Carrier engineers
  • Media GW Controller, Call Agent, CRE
  • Media Server, Access/Trunk/Voicemail GWs
  • SBC, TAS
  • Softswitch, SIP Application Server, Gateway Controller, Media Gateway, Signaling Gateway, Session Border Controller, Session Server Trunk

Enterprise Solutions

  • 400 Enterprise Communication engineers
  • Unified Communication Applications, Contact Center, IVR, SIP PBX, Asterisk, WebRTC, Fax, Voicemail, AI Voice, Live Support, Collab, IP Phones


  • 700 engineers
  • Mobile VoIP, SIP Soft/Hard Clients, Smart Office Clients, S4B & Microsoft Teams integration


  • 700 Networking, EMS, NMS engineers
  • Service Edge Router, Carrier Edge Router, GGSN, SGSN, Broadband Remote Access, Access Management, Ethernet Routing Switch, BRAS
  • Backhaul Metro, NODE, NID
  • LAN Core/Access Switch, Data Center Switch
  • Network Provisioning/Monitoring/Control, Inventory Management
  • Resource Provisioning, Data Collection/Processing, Performance Management, Trouble Management
  • Fulfillment Process, Assurance Process, Billing Process, Cloud Manager and Orchestrator

Technologies - Capabilities

We try our best to enable and assure the abilities of the telecommunications of the enterprise.

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

Sample Projects



  • Software Testing
  • Test Tool Development
    • Att tool: automation frame work to executes procedure described in a scenario file
    • Ysim tool: simulate network devices and send message in any protocols
    • ICARUS: establish a big number of UE sessions
    • MP3: generate a big data traffic via LTE tunnel
    • Log collector tools: shsuite, pstat, dwdf, admf (for lawful intercept)

Network Transformation Solutions

  • Enable solutions for Telco to migrate their legacy networks to NGN (SoftSwitch & IMS)
  • Services:
    • Development: New Features & Tools Product Sustaining
    • Product & Solution Integration Testing: Full testing including Performance & Security test Manual, Automation and Continuous Testing
    • Production Services: Demo, deployment support Migration and Upgrade procedure development

Enterprise Communication Solution

  • Set up the test domain, environment
  • Verify all supported functionalities of the OTT services in various platforms: video/audio call, conference, message, voice, group call, presence
  • Verify push notification for active/passive push on android and iOS
  • Verify 2FA with 1 million subscribers via BOT tools
  • Verify media stream under different network conditions
  • Verify media stream switch back and forth between wifi and 4G/LTE
  • Verify interaction with Voice mail service, multi-party & collaboration and SIP client for Call-P service

Virtual Network Function Manager

  • Provide Lifecycle Management (LCM) for VNFs based on NFV Architect
  • Services:
    • VNFM Product, System test
    • Solution test for VNFs
      • Application Server
      • Call Controller
      • Session Border Controller
      • Signaling Controller
      • Element Management System
    • Automation Development
    • CI/CD Implementation