Open Standards Communication
Endex of Oklahoma delivers business communication
systems built on open SIP (Session Initiation
Protocol) standards. This approach gives you the
freedom to choose hardware, avoid vendor lock-in,
and integrate with a wide range of devices and
services.
PBX & VoIP Solutions
Our VoIP phone systems replace traditional phone
lines with internet-based communication, reducing
costs while adding powerful features. Whether you
need an on-premise PBX or a cloud-hosted solution,
we design systems that fit your business needs.
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On-Premise PBX
Full control with your own hardware, ideal
for organizations requiring data
sovereignty
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Cloud-Hosted PBX
Reduced infrastructure costs with scalable,
managed solutions
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Hybrid Deployments
Combine on-premise reliability with cloud
flexibility for multi-site
organizations
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SIP Trunking
Connect your PBX to the public telephone
network over the internet
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Unified Communications
Voice, video, messaging, and presence in
one integrated platform
Video Intercom Systems
Our SIP-based video intercom solutions integrate
directly with your phone system, allowing you to see
and speak with visitors from any phone, computer, or
mobile device. Open SIP standards ensure
compatibility with a wide range of endpoints.
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Door Stations
HD video and audio intercoms for entrances,
gates, and secure areas
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Phone Integration
Answer door calls on your desk phone,
softphone, or mobile app
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Access Control
Remote door release and integration with
electronic locks
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Recording & Logging
Video and audio recording of intercom calls
for security purposes
Why Open SIP Standards?
Building on open standards provides significant
advantages over proprietary systems:
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No Vendor Lock-In - Choose
phones, intercoms, and services from any
SIP-compatible manufacturer
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Lower Costs - Competitive
pricing from multiple vendors drives down
hardware and service costs
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Interoperability - Connect
phones, intercoms, paging systems, and
softphones from different manufacturers
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Future-Proof - Industry
standard protocol ensures long-term support and
compatibility
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Integration - Connect with CRM,
ERP, and other business systems through standard
APIs
Key Features
Phone System Features
- Auto-attendant and IVR menus
- Call queues and ring groups
- Voicemail to email transcription
- Call recording and analytics
- Conference bridges
- Mobile apps for remote workers
- Presence and instant messaging
- CRM integration
Video Intercom Features
- HD video with night vision
- Two-way audio communication
- RFID and keypad access
- Weather-resistant outdoor stations
- Multi-button directory panels
- Integration with VMS platforms
- Mobile app notifications
- Visitor photo capture
Compatible Hardware
We work with leading SIP-compatible manufacturers to
provide reliable, feature-rich hardware:
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Phones - Yealink, Poly,
Grandstream, Cisco, Fanvil
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Video Intercoms - 2N, Akuvox,
Grandstream, Fanvil, Comelit
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Paging - Algo, CyberData,
Bogen, AtlasIED
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PBX Platforms - FreePBX, 3CX,
Asterisk, FusionPBX
