Bridge analog, cellular and digital lines to your IP phone system — Grandstream HT and GXW analog adaptors and FXS gateways, Yeastar FXS/FXO/GSM/4G/E1-T1-PRI/BRI gateways, Epygi QX gateways, and Cohesive high-density FXS analog gateways. Standard SIP, T.38 fax and PSTN failover, from a single authorized distributor.
Leading Brands
Analog
Cellular
Digital
Gateways and ATAs are the bridge between your old and new phone worlds — keeping analog phones, fax machines, PSTN lines, mobile networks and ISDN trunks working while you move to SIP. Cohesive Technologies brings four proven brands together: Grandstream HT ATAs and GXW FXS gateways; Yeastar TA/TG/TE/TB gateways spanning analog, cellular and digital; Epygi QX E1/T1, FXO and FXS gateways; and Cohesive high-density Decibel-series FXS analog gateways. Browse each brand below and jump straight to any model.
HT-series analog telephone adaptors from 1 to 8 FXS ports, hybrid FXS+FXO models and the high-density GXW4200 FXS gateway series.
Single-port analog telephone adaptor for connecting one analog phone or fax machine to a SIP phone system.
Two-port analog telephone adaptor — the common choice for a small office keeping a phone and a fax line on IP.
Hybrid adaptor with both FXS and FXO, letting a site connect an analog phone and keep a PSTN line as backup.
Four-port analog telephone adaptor for offices carrying a handful of analog extensions onto an IP system.
Eight-port analog telephone adaptor — the density option for a floor or building still running analog handsets.
High-density FXS VoIP gateway series for carrying large numbers of analog extensions on an IP phone platform.
A full gateway line-up spanning analog, cellular and digital — TA FXS/FXO, TG GSM/4G, TE E1/T1/PRI and TB BRI gateways for connecting any line to VoIP.
FXS and FXO analog gateways (TA1610, TA2400) that connect analog phones, fax machines and PSTN lines to your SIP system.
Cellular VoIP gateways (TG1600) linking GSM/3G/4G mobile networks to your IP-PBX for mobile least-cost routing and backup.
Digital gateways (TE200) bridging E1/T1/PRI trunks to VoIP with T.38 fax support for high-capacity connectivity.
BRI gateways integrating ISDN BRI lines with your IP telephony network, with T.38 fax over IP for reliable faxing.
QX digital and analog gateways bridging E1/T1/PRI, FXO and FXS lines to your IP telephony network.
The Epygi QXE1T1 is a digital e1/t1 gateway providing 1 x e1/t1 (pri) span, bridging PSTN and legacy lines to your IP telephony network.
The Epygi QXFXO4 is a analog fxo gateway providing 4 x fxo ports, bridging PSTN and legacy lines to your IP telephony network.
The Epygi QXFXS24 is a analog fxs gateway providing 24 x fxs ports, bridging PSTN and legacy lines to your IP telephony network.
Decibel-series high-density FXS analog gateways for bringing large numbers of analog phones, fax machines and devices onto SIP/IP at scale.
The Cohesive DB2400A is a 24-port FXS analog gateway (Decibel series) that connects analog phones, fax machines and devices to your SIP/IP telephony network.
The Cohesive DB3200A is a 32-port FXS analog gateway (Decibel series) for high-density integration of analog endpoints into your SIP/IP telephony network.
Bring analog phones, fax machines, door phones and PSTN lines onto SIP without replacing what still works.
GSM/4G, E1/T1/PRI and BRI gateways connect mobile networks and ISDN trunks for least-cost routing and backup.
Works with Grandstream UCM, Yeastar, Epygi, Asterisk and 3CX — mix brands freely across one deployment.
From a single-port ATA to 32-port high-density gateways, add capacity as your analog footprint grows or shrinks.
Gateways and analog telephone adaptors are how businesses move to VoIP without throwing away working equipment — they connect analog phones, fax machines, PSTN lines, mobile networks and ISDN trunks to a modern SIP phone system. As an authorized distributor, Cohesive Technologies offers a complete gateway and ATA portfolio in India, bringing Grandstream, Yeastar, Epygi and Cohesive together so you can specify, source and support the whole deployment from one partner.
Grandstream HT-series ATAs cover 1 to 8 FXS ports plus hybrid FXS+FXO models, with the GXW4200 series for high-density FXS gateway needs. Yeastar spans the full range — TA analog FXS/FXO, TG GSM/3G/4G cellular, TE E1/T1/PRI digital and TB BRI ISDN gateways. Epygi QX gateways bridge E1/T1, FXO and FXS lines, and Cohesive completes the line-up with Decibel-series 24- and 32-port high-density FXS analog gateways for large analog estates.
Whether you are keeping a couple of fax lines alive, connecting a PSTN backup, routing calls over cellular or migrating hundreds of analog extensions, there is a matching gateway in this range. Every device is a standard SIP endpoint, so it interoperates with Grandstream UCM, Yeastar P-Series, Epygi QX, Asterisk and 3CX, and supports T.38 fax across the digital range. Cohesive Technologies backs each brand with expert consultation, genuine stock, design help, competitive pricing and nationwide delivery across India, Sri Lanka, Nepal and the Maldives.
Authorized distributor · Grandstream · Yeastar · Epygi · Cohesive · FXS · FXO · GSM/4G · PRI · BRI · Best price in India · Free consultation · Nationwide delivery
