PSTN switch-off : preparing the migration of your PBX
The public switched telephone network is being switched off. Here is how to sequence the migration of your PBX to VoIP without interruption.
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Business fibre : single carrier or multi-carrier ?
Advantages, costs and pitfalls of each access strategy. And why independence changes the negotiation.
Read the article →VoIP for SMEs : how much does an extension really cost ?
Subscription, hardware, migration : the total cost of a VoIP extension, beyond the advertised per-user price.
Read the article →SD-WAN : why multi-site organisations are adopting it
Prioritisation, resilience, steering : what SD-WAN concretely changes for your sites and your cloud applications.
Read the article →Network cabling : how many DATA points per workstation ?
A simple sizing rule, the classic pitfalls, and why cabling conditions everything else.
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SubscribeTelephony · 10 Nov 2026
PSTN switch-off : preparing the migration of your PBX
The public switched telephone network (PSTN) is being progressively decommissioned by the carriers. If your PBX still relies on classic analogue or digital lines, anticipating becomes urgent : past a certain deadline, lines can no longer be created or kept.
The migration is prepared in three stages : a precise inventory of lines and uses (fax, alarms, lifts, payment terminals), the choice of a replacement solution — generally a SIP trunk or a cloud PBX (UCaaS) — then a coordinated migration with number portability. A preliminary audit avoids unpleasant surprises (faxing printers, forgotten lines in the server room).
Connectivity · 3 Nov 2026
Business fibre : single carrier or multi-carrier ?
Committing to a single carrier often brings aggressive pricing, but creates a dependency : in the event of an outage or a dispute, you have no plan B. Conversely, multi-carrier spreads the risk and strengthens resilience, at the cost of heavier coordination and multiple contracts.
The most robust approach is to separate the primary access (fibre) from a back-up access (fixed 4G/5G or a second loop), then aggregate everything in an SD-WAN that fails over automatically. That is precisely the role of an independent integrator : arbitrating between carriers site by site, with no conflict of interest.
Telephony · 27 Oct 2026
VoIP for SMEs : how much does an extension really cost ?
The advertised "per user per month" price does not tell the whole story. You must add the hardware (handset or softphone), the migration, the SIP trunks and the options actually used (IVR, recording, contact centre).
Properly sized, a VoIP extension generally costs less than a classic line while offering more : mobility, voicemail, statistics. The key is to neither under-size the features (the bill then climbs back up in add-ons) nor over-size the hardware.
Network · 20 Oct 2026
SD-WAN : why multi-site organisations are adopting it
SD-WAN virtualises the wide-area network : it aggregates several links per site, prioritises critical applications (payment, video, ERP) and fails over automatically from one link to another in the event of degradation.
For a head office and its sites, the benefit is immediate : fewer business interruptions, centralised steering and predictable billing. Combined with 24/7 monitoring, it turns a "suffered network" into a managed service.
Cabling · 13 Oct 2026
Network cabling : how many DATA points per workstation ?
A robust field rule : two DATA points per workstation — one for the computer, one for IP telephony, a second screen or a shared device — plus dedicated points for the printer, videoconferencing and network equipment.
Under-sizing the cabling condemns the building to extension leads and "rogue" switches. Structured, documented and point-by-point tested cabling is the most durable investment of a network project.
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