TEHRAN LA
Tehran La Communication — Paris & Île-de-France
Your business telephony, with no downtime and no surprises.
Hosted or on-premises 3CX phone system, IP phones, SIP trunks and number porting, softphone on mobile and PC, call handling and video conferencing. One point of contact, from the audit to on-call support.
Solutions
Everything you need to make calls, nothing superfluous.
We don't resell a catalogue: we have been designing, installing and operating 3CX phone systems for years. Every building block below, we know down to the phone firmware.
3CX phone system
Hosted in the cloud or installed on your server, sized to your simultaneous calls, with backups, updates and monitoring. Licence and hosting managed for you.
Phones & headsets
Desk phones, DECT cordless, meeting rooms and headsets: supplied, remotely provisioned and delivered ready to plug in. Your existing phones are kept when compatible.
SIP trunks & numbers
Carrier selection, simultaneous channels sized to your traffic, porting of your numbers with no interruption, additional numbers in France and abroad. We manage the porting with the carrier until cut-over.
Mobility & remote work
Your landline follows every team member: 3CX app on iPhone, Android, Windows and Mac, Bluetooth headsets, Microsoft 365 and CRM integration to call in one click and find the history.
Call handling
Interactive voice response, call queues, opening hours, announcements and hold music, call recording and statistics. We tune call handling to your business — not the other way round.
Video & collaboration
3CX video meetings included in the phone system, with no extra subscription: screen sharing, invitations by link, equipped meeting rooms (display, camera, sound bar).
Who we serve
From a three-line practice to a multi-site group.
The same system, the same method; only sizing and call handling change.
Small businesses
Offices, practices, agencies
Replace an old PBX or analogue lines, keep your numbers, gain mobility and video — without changing the way you work.
Multi-site
Restaurants, hotels, chains
One phone system for every location, centralised or per-site call handling, free transfers between sites, statistics per outlet.
Method
A migration is prepared, not improvised.
Four steps, always in the same order, so that cut-over day is as uneventful as possible.
Audit
Inventory of lines, numbers, phones and usage: who calls whom, when, and what absolutely has to keep working.
Design
Dial plan, call handling, queues, channel sizing, choice of phones. Itemised quote, licence and hosting included.
Migration
New system configured and tested alongside the old one, phones provisioned, porting scheduled: cut-over with no downtime, training included.
Operation
Monitoring, updates, adding users and numbers, on-call according to contract. Always the same point of contact.
Commitments
What we guarantee in writing.
Six commitments, written into every quote and every maintenance contract.
Cut-over
No downtime
The new system runs in parallel before porting; your calls never stop.
Numbers
Kept
Your numbers belong to you: we port them and you remain the holder of your lines.
Quote
All-inclusive, line by line
Licence, hosting, phones, trunk, labour and training: no hidden line, no surprise option.
Training
Included
Hands-on training on phones and the app on cut-over day, guides handed to the team.
Documentation
Transferable to a third party
Dial plan, exported configuration, credentials and carrier contacts handed to the client.
Support
The same person
A new user, a greeting to change, an outage: you call the person who installed it.
Network & infrastructure
Our brand SDI Paris.
A phone system is only as good as the network that carries it. Cabling, UniFi Wi-Fi, firewall, video surveillance and access control are handled by our infrastructure brand, with the same standards and the same point of contact.
- 3CX
- Yealink
- Fanvil
- Snom
- Jabra
- Poly
- Ubiquiti · UniFi
- Microsoft 365
- OVHcloud
Quote
Let's talk about your phone system.
How many users, how many sites, what you are missing today: tell us the essentials. We call back quickly, and the quote is free.
Saturday 9:00 – 18:00
info@tehran.la
Hosted systems: monitoring and on-call according to contract, anywhere in France