Grandstream Authorized Reseller in Pakistan

Grandstream FXS & FXO VoIP Gateways in Pakistan

Q: Which Grandstream gateway should I use for analog phones?

For 1 to 8 analog endpoints, consider the HT801 v2, HT802 v2, HT812 v2, HT814 v2 or HT818 v2. For 16, 24, 32 or 48 FXS ports, consider the corresponding GXW4200 v2 model. Final selection should allow for growth and confirm device compatibility.

Connect analog phones, fax machines, intercoms and PSTN lines to a modern SIP phone system. TekkPak designs, supplies, configures and supports Grandstream gateway solutions for businesses across Pakistan.

1 to 48 FXS ports4 or 8 FXO portsGrandstream UCM & 3CX readyLahore based support

Find the Right Gateway Request a Solution

FXS Analog device to SIP FXO PSTN line to IP PBX

Grandstream HT814 four port FXS VoIP gateway available in Pakistan from TekkPak

Preserve analog. Gain VoIP.Grandstream HT Series

Quick answer

Do you need an FXS or FXO gateway?

Choose FXS for analog equipment

An FXS gateway provides dial tone and ringing voltage to analog phones, fax machines, modems, lift phones, door phones or legacy PBX extensions, then connects them to a SIP based IP PBX or hosted VoIP service.

Choose FXO for analog telephone lines

An FXO gateway receives analog PSTN lines from a telecom operator and presents them as SIP trunks to Grandstream UCM, 3CX or another compatible IP PBX.

Simple rule: the gateway port connects to the opposite interface. An analog telephone plugs into FXS. A telephone company analog line plugs into FXO. PRI, E1, GSM and native SIP trunks need different interfaces.

Grandstream portfolio

Gateway families for every analog migration

Select compact adapters for a few endpoints, high density gateways for large estates, or FXO gateways when analog PSTN lines must terminate on your IP PBX.

Compact FXS

1–2

HT801 v2 & HT802 v2

Compact analog telephone adapters for one or two analog endpoints.

1 or 2 FXS ports
TLS and SRTP support
T.38 fax support
Automated provisioning

Routed FXS

2–4

HT812 v2 & HT814 v2

Multiport FXS gateways with dual Gigabit Ethernet and an integrated NAT router.

2 or 4 FXS ports
Two SIP profiles
Failover SIP server
UCM Zero Config support

Eight port FXS

HT818 v2

Eight port FXS gateway for branch offices, small hospitality sites and distributed analog equipment.

8 FXS ports
Dual Gigabit Ethernet
Wideband voice codec
AES based device security

High density FXS

16–24

GXW4216 v2 & GXW4224 v2

Rack friendly FXS gateways for medium density analog extension migrations.

16 or 24 FXS ports
Independent SIP account per port
Four SIP server profiles
Gigabit network interface

Enterprise FXS

32–48

GXW4232 v2 & GXW4248 v2

High density conversion for hotels, campuses, hospitals, factories and large legacy estates.

32 or 48 FXS ports
Opus and G.722 support
Secure boot and dual firmware
Display for local status

Analog PSTN to SIP

4–8

HT841 & HT881

FXO gateways that connect four or eight analog PSTN lines to a hosted or on premise IP PBX.

4 or 8 FXO plus 1 FXS
Three SIP profiles
Lifeline power failover
TR-069 provisioning

Product details were checked against Grandstream's official HT analog adapter portfolio, GXW4200 v2 series and HT841/HT881 page. Confirm current Pakistan availability before procurement.

Interactive planning tool

Grandstream gateway model selector

Choose what you need to connect and the required capacity. The selector provides a planning recommendation, which TekkPak can confirm after checking line type, PBX, cabling and site conditions.

Your requirements

Start with the interface direction. Port count comes next.

What are you connecting?

Required active ports

Common scenarios

Planning recommendation

HT814 v2

Four FXS ports for analog endpoints

A strong fit for four analog phones, fax machines or other approved analog devices that must register to a SIP platform.

4 FXSInterface capacity

Dual GigabitNetwork

BranchTypical scale

Confirm fax protocol, analog device compatibility, SIP credentials, cable termination and surge protection before ordering.

Verify My Selection

Decision guide

FXS versus FXO gateway comparison

The labels describe how a port behaves electrically and operationally. Choosing by connector shape alone is a common and costly mistake.

Requirement	FXS gateway	FXO gateway	Typical Grandstream family
Connects to	Analog phone, fax, intercom, lift phone or legacy extension	Analog PSTN line or an analog trunk port	HT v2 / GXW4200 v2 for FXS; HT841 / HT881 for FXO
Provides dial tone	Yes. The FXS port supplies line voltage, dial tone and ringing	No. It receives service from the analog line	Check loop current and ringing requirements for specialist devices
SIP role	Registers analog endpoints to the IP PBX or SIP service	Converts analog trunks into SIP connectivity for the IP PBX	Compatible SIP platform and dial plan are required
Best fit	Preserving analog devices during VoIP migration	Retaining existing analog operator lines with a modern PBX	Hybrid migration with phased replacement
Not suitable for	Incoming PSTN line termination	Direct connection of ordinary analog telephones	PRI/E1, GSM or a native SIP trunk without the correct interface

Technical note: actual interoperability depends on PBX support, operator signalling, regional tones, caller ID method, cable length, device current requirements, codecs, network quality and configuration.

Industry use cases

Where analog gateways still create value

The best migration is not always a rip and replace project. Gateways let organizations modernize call control while retaining useful analog assets.

Hotels & Hospitality

Connect large numbers of guest room phones to an IP PBX while preserving existing room cabling. Use FXO where analog outside lines must remain available.

Healthcare

Integrate ward phones, reception sets, hotlines, selected fax workflows and approved emergency analog devices into a centrally managed voice platform.

Education

Retain classroom, hostel, security desk and administration analog phones across schools, universities and distributed campuses.

Manufacturing

Bridge rugged analog phones, guard posts, plant hotlines and legacy extensions while the core PBX and office users move to SIP.

Banking & Finance

Support controlled migrations of legacy voice endpoints and operator lines, subject to the organization's recording, security and compliance design.

Retail Chains

Connect branch analog devices to centralized or hosted communications and retain local analog lines where operationally required.

Public Sector

Phase the migration of established analog extensions across offices without replacing every handset, cable and endpoint at once.

Property & Facilities

Integrate lift phones, gate intercoms, reception phones and emergency lines after confirming electrical and regulatory compatibility.

Designed for reliability

What TekkPak checks before deployment

A correct port count is only the beginning. Our planning process considers the full analog, SIP, network and support environment.

Discovery

Identify every analog device or trunk, active concurrency, caller ID requirements, fax usage, emergency lines and future capacity.

Compatibility

Confirm the IP PBX, SIP service, operator signalling, codecs, dial plan, DTMF, country tones and specialist device requirements.

Infrastructure

Review Ethernet, VLANs, QoS, UPS, earthing, surge protection, patching, cable length, rack space and remote access policy.

Commissioning

Configure, label, test inbound and outbound calls, validate failover where applicable, document the solution and train administrators.

Complete communications ecosystem

Build the gateway into the right platform

Explore related TekkPak solutions and practical guides for planning the rest of your deployment.

Solution page

Grandstream Solutions in Pakistan

Explore TekkPak's wider Grandstream portfolio, authorized reseller credentials and deployment services.

Explore Grandstream solutions

Solution page

IP PBX Solutions

Compare on premise and cloud phone system options for branches, enterprises and multi-site organizations.

View IP PBX solutions

Product guide

Grandstream UCM6300 or UCM6300A?

Understand which UCM family better matches your endpoints, collaboration needs and deployment model.

Read the comparison

Implementation guide

Set Up a Grandstream UCM PBX

Review the main planning and configuration stages for a Grandstream UCM phone system.

Read the setup guide

Migration guide

Replace a Panasonic PBX

See how a legacy Panasonic environment can be migrated to a modern IP PBX in controlled phases.

Plan a PBX migration

Decision guide

Cloud PBX or On Premise PBX?

Compare control, infrastructure, remote working, cost and continuity considerations before choosing a platform.

Compare deployment models

Local expertise, genuine products

Grandstream gateway support from Lahore

TekkPak Technologies is an authorized Grandstream reseller in Pakistan. We support solution sizing, supply, provisioning, IP PBX integration, testing, documentation and after sales assistance for organizations in Lahore and across Pakistan.

Contact TekkPak

Grandstream authorized reseller certificate for TekkPak Technologies Pakistan — Authorized reseller credentials shown for customer verification.

Frequently asked questions

Grandstream FXS and FXO gateway FAQs

What is the difference between an FXS and FXO gateway?

An FXS gateway supplies dial tone, line voltage and ringing to analog devices such as phones and fax machines. An FXO gateway receives an analog PSTN line and converts it into SIP connectivity for an IP PBX. Analog devices connect to FXS ports; analog telephone lines connect to FXO ports.

Which Grandstream gateway should I use for analog phones?

For 1 to 8 analog endpoints, the HT801 v2, HT802 v2, HT812 v2, HT814 v2 or HT818 v2 may fit. For 16, 24, 32 or 48 FXS ports, consider the corresponding GXW4200 v2 model. Final selection should allow for growth and confirm device compatibility.

Which Grandstream gateway connects analog PSTN lines to an IP PBX?

The Grandstream HT841 accepts four analog FXO lines and the HT881 accepts eight, with one FXS port also included. Legacy GXW4104 and GXW4108 requirements should be checked for current availability and compatibility before procurement.

Can Grandstream gateways work with 3CX and Grandstream UCM?

Grandstream gateways use SIP and are designed for SIP based environments. They can be deployed with Grandstream UCM and compatible third party platforms such as 3CX, subject to supported firmware, templates, SIP configuration and interoperability testing.

Can I use an FXS gateway for fax over IP?

Many Grandstream FXS models support T.38 fax. Successful faxing still depends on the SIP provider, PBX, codec and network path. Where fax is business critical, test the full path before rollout and retain an approved contingency.

Can an FXO gateway connect a PRI, E1 or GSM line?

No. An FXO gateway is for analog telephone lines. PRI or E1 trunks require a digital gateway such as an appropriate GXW4500 series model, while GSM or cellular trunks require a compatible GSM or LTE gateway. A native SIP trunk normally connects directly to the IP PBX.

Does TekkPak provide installation outside Lahore?

Yes. TekkPak serves businesses across Pakistan, with solution design and support coordinated from Lahore. Delivery and implementation arrangements depend on the site, project scope and availability of local infrastructure.

What information is needed for a gateway quotation?

Share the number and type of analog devices or lines, current PBX model, required simultaneous calls, site locations, fax and caller ID needs, available network and power infrastructure, preferred IP PBX and future expansion estimate.

Talk to a gateway specialist

Preserve the analog equipment you need. Modernize everything around it.

Send us your analog device count, PSTN line count, PBX model and site details. TekkPak will help identify the right Grandstream FXS or FXO gateway and the prerequisites for a reliable deployment.

TekkPak Technologies Private Limited · Commercial Broadway, DHA Phase 8, Lahore · Serving customers across Pakistan

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