Engineers tackling modern telecom challenges now have a single platform to test everything from blazing-fast 5G connections to time-division multiplexing lines that still carry critical voice traffic. GL Communications Inc., a Gaithersburg, Maryland leader in telecom testing with over 35 years in the field, announced the portfolio on Feb. 18, 2026.

The company’s tools cover wireless, Ethernet, fiber optics, TDM and analog networks. They deliver real-time metrics on throughput, latency, jitter, frame loss and bit error rates. Vijay Kulkarni, GL’s CEO, said the platform gives ‘thorough visibility and precise validation across multiple technologies.’

For high-speed Ethernet and IP networks, GL’s solutions handle standards like RFC 2544, ITU-T Y.1564 and RFC 6349. They generate wirespeed traffic up to 100 Gbps with multi-port setups and automation via Python and REST APIs. Engineers can simulate thousands of IPv4/IPv6 flows, TCP/UDP sessions, VLANs, MPLS and QoS profiles for stress and performance checks.

Troubleshooting gets a boost from lossless packet capture at up to 400 Gbps. Hardware filtering, nanosecond timestamps, NVMe storage and PCAP exports allow deep dives into network problems. Secure web access lets multiple users analyze captures simultaneously.

Wireless testing spans 3G to 5G, plus VoIP with SIP. GL emulates massive call volumes, assesses voice, video and data quality via QoS and QoE metrics. Features include real-time recording, KPI reports and script automation to ensure mobile networks hold up under load.

Optical transport isn’t left behind. Solutions test SONET/SDH from OC-3 to OC-192 and STM-1 to STM-64, including BERT, channelized T1/E1, Packet over SONET and ATM analysis. They measure delay, impairments and raw errors in metro and core backbones blending IP and optics.

Voice quality tools use POLQA and PESQ scoring. GPS-integrated drive tests, trend analysis and metrics like audio dropouts turn raw data into user experience insights. Operators get end-to-end validation across devices and apps.

Legacy TDM and PSTN remain vital for carriers and enterprises. GL supports T1/E1, T3/E3, 2-wire/4-wire analog, plus SS7, ISDN, GSM, MAP, CAMEL, FXO and FXS protocols. Non-intrusive monitoring, load testing and fax/modem checks keep mission-critical circuit-switched systems reliable.

GL serves service providers, equipment makers, data centers, enterprises and governments worldwide. As networks grow faster and more complex, the firm stresses scalability, accuracy and automation. Contact for sales: Vikram Kulkarni at +1 (301) 670-4784 ext. 114.