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FXO Gateway

Grandstream HT841 / HT881

Analog FXO Gateways for PSTN Lines

The Grandstream HT841 and HT881 are analog FXO gateways that bring PSTN exchange lines into a VoIP system, for sites that must keep existing landlines in service. They connect analog trunk lines to your IP-PBX over SIP with HD voice, strong security and automated provisioning — choose the model that matches the number of PSTN lines you need to terminate.

FXO Gateway

PSTN lines to VoIP

HT841 / HT881

Two densities

SIP Trunking

IP-PBX ready

Auto-Provision

Easy rollout

FXO
PSTN Lines
SIP
VoIP
HT841
/ HT881
Gateway
Analog

Bring PSTN Lines into Your VoIP System

The HT841 and HT881 FXO gateways connect analog exchange lines to your IP-PBX over SIP.

Analog FXO Ports

FXO ports connect PSTN exchange (landline) trunks into your VoIP system

Two Densities

Choose the HT841 or the higher-density HT881 to match the number of PSTN lines you terminate

SIP Trunking to Any IP-PBX

Registers analog trunks to standard SIP IP-PBX platforms

HD Voice & Call Features

Clear audio with full call handling and routing

TLS & SRTP Security

Encrypted signalling and media with secure automated provisioning

Mass Provisioning

TR-069 and XML auto-provisioning for fast, consistent rollouts

What Our Customers Say

Hear directly from businesses that have transformed their communications with Cohesive Technologies solutions.

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Cancer Institute
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Cleo Gold
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Balaji Amines Ltd
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Vitel Global Com

Grandstream HT841 / HT881 — Common Questions

Everything you need to know about the Grandstream HT841 / HT881 before you buy.

They are analog FXO gateways that bring PSTN exchange (landline) trunks into a VoIP system, connecting analog trunk lines to an IP-PBX over SIP.
They are FXO gateways at two densities — choose the model that matches the number of PSTN lines you need to terminate.
An FXO gateway connects analog PSTN exchange lines to a VoIP system, so sites can keep existing landlines while moving to IP telephony.
Yes. They use standard SIP and integrate with common IP-PBX platforms.
Yes. They support TR-069 and XML automated provisioning with TLS/SRTP security.
Cohesive Technologies is an authorised Grandstream distributor for India, Sri Lanka, Nepal and the Maldives. Contact our team for pricing, stock availability, demo units and pre-sales design support, and we will connect you with your nearest authorised partner.