SIP & VoIP phones for every environment — Grandstream carrier-grade desk, Wi-Fi cordless and hotel phones, Snom TEC-certified German-engineered handsets, and Guardian Telecom rugged industrial telephones. HD audio, PoE, Gigabit Ethernet and cloud provisioning, from a single authorized distributor.
Leading Brands
Phone Models
Audio Quality
Open Standard
IP voice telephony moves your calls onto a modern SIP network, giving you HD audio, centralized management and easy scaling from a two-line reception phone to a full contact centre. Cohesive Technologies brings together three of the most trusted names in the industry — Grandstream for cost-effective carrier-grade deployments, Snom for German-engineered TEC-certified quality, and Guardian Telecom for rugged phones built to survive the harshest sites — so you can standardise on one supplier for the whole building. Browse each brand below and jump straight to any model.
Carrier-grade GRP, high-end GXP, Wi-Fi cordless WP and hotel GHP phones with HD audio, PoE, Gigabit Ethernet and free GDMS cloud provisioning.
4-line phone, 2.4″ colour LCD, 4 SIP accounts; PoE, Wi-Fi and Gigabit variants.
12-line phone with a 7″ capacitive touchscreen, Wi-Fi 6, Bluetooth and USB.
6-line flagship, 4.3″ colour LCD, 48 BLF keys, Bluetooth, USB and Gigabit.
3-line Gigabit SIP phone, 132×64 backlit LCD with 24 BLF/speed-dial keys.
Cordless Wi-Fi 6 phone, 2.8″ colour LCD, 12-hr talk time and AI noise reduction.
Hotel IP phone, 2 SIP accounts, 6 programmable + 10 speed-dial keys; Wi-Fi on W models.
TEC-certified, German-engineered SIP desk, hotel, emergency phones and expansion modules with HD audio, colour displays, PoE and a 3-year warranty.
Backlit graphical display, 2 SIP accounts, PoE option.
High-res colour display with second screen for function keys.
Tiltable 5" IPS, USB, OpenVPN, TLS/SRTP security.
Tiltable 5" IPS, Bluetooth, USB, OpenVPN, HD audio.
Tiltable 5" IPS, Wi-Fi, BT, USB-C, flagship D8xx model.
SIP hotel phone with message waiting and wake-up call.
Rugged explosion-proof, watertight and weather-resistant analog/VoIP telephones, emergency help points and enclosures for hazardous, extreme and harsh environments.
Rugged ACT & ACR aluminum-cast analog/VoIP phones for abuse-prone, weather-exposed sites.
Explosion-proof phones for the highest area classifications, with gloves-on oversized buttons.
Watertight thermoplastic phones sealed against dust, rain, corrosion & high-pressure water.
Weather-resistant industrial phones for rough-service outdoor, tunnel & gate use.
Heavy-duty emergency help-point phones with matching OGP wall & pedestal housings.
Secure cloud platform to configure, monitor & manage deployed Guardian endpoints.
Wideband HD audio with noise-cancelling handsets for clear conversations across every desk and every site.
Deploy, monitor and update whole fleets remotely via Grandstream GDMS, Snom provisioning and Guardian iGuard.
Standard SIP endpoints interoperate with UCM, Yeastar, Epygi, Asterisk, 3CX and most PBX & softswitch platforms.
From reception desks to hotels, warehouses and hazardous plants — one distributor covers the whole building.
IP voice telephony has replaced legacy analog and TDM lines for organisations of every size, delivering HD audio, feature-rich handsets, centralized management and lower running costs over a single IP network. As an authorized distributor, Cohesive Technologies offers a complete SIP and VoIP phone portfolio in India, bringing Grandstream, Snom and Guardian Telecom together under one roof so you can specify, source and support your entire deployment from one partner.
Grandstream covers the widest range — carrier-grade GRP phones for mass zero-touch rollouts, high-end GXP business phones, WP dual-band Wi-Fi cordless handsets and GHP hotel phones, all managed free through the GDMS cloud. Snom adds German-engineered, TEC-certified D-series desk phones, hotel and emergency phones and expansion modules, prized for build quality, security and a 3-year warranty. Guardian Telecom completes the picture with rugged industrial telephones — explosion-proof, watertight and weather-resistant models plus emergency help points — engineered for refineries, tunnels, mines, plants and outdoor sites where ordinary phones fail.
Whether you are fitting out a corporate headquarters, a hotel, a hospital, a warehouse, a call centre or a hazardous industrial facility, there is a matching IP phone in this range. Every model is a standard SIP endpoint, so it interoperates with Grandstream UCM, Yeastar, Epygi, Asterisk, 3CX and most third-party PBX and service-provider platforms. Cohesive Technologies backs each brand with expert consultation, genuine stock, competitive pricing, nationwide delivery across India, Sri Lanka, Nepal and the Maldives, and full technical support.
Authorized distributor · Grandstream · Snom · Guardian Telecom · HD audio · Best price in India · Free consultation · Nationwide delivery
