Blog
How SIP trunks connect your existing phone system to the public network: channels and capacity, 876 and toll-free numbers, porting, call quality, and trunk pricing in Jamaica.
← All articles · 43 articles in SIP Trunking
Pinned
WOCOM fills its technical posts from its own certified pool — support, field engineering, installation and SIP engineering. The route in is the same for everyone: learn what we do, certify free at WOCOM Academy, then apply for what is open.
SIP Trunking
Most Jamaican businesses are still paying monthly line rental fees on legacy phone infrastructure they no longer need. This framework shows you exactly how to calculate your SIP trunk return on investment — before you commit to anything.
Read article →
SIP Trunking
One-way audio — where a caller can hear your staff but cannot be heard, or vice versa — is one of the most disruptive VoIP faults a Jamaican business can face. This guide explains every common cause in plain language, quick checks your team can run immediately, and exactly when to escalate to your SIP trunk provider.
Read article →
SIP Trunking
Not all SIP trunk contracts are written in your favour. Before you commit to a provider in Jamaica, these are the exact clauses that protect your business — and the red flags that should make you walk away. A checklist every Jamaican business owner should read.
Read article →
SIP Trunking
Your number is on every business card, vehicle wrap, and Google listing you own — but do you actually control it? Reseller lock-in and bundled contracts have quietly cost Jamaica businesses their own numbers. Here is what to check before it happens to you.
Read article →
SIP Trunking
Hearing your own voice play back at you mid-sentence is more than annoying — it signals a technical problem that undermines caller confidence. This guide explains the two types of VoIP echo affecting Jamaican businesses, how to pinpoint which one you have, and the exact fixes to eliminate it.
Read article →
SIP Trunking
The per-minute rate on your SIP trunk quote is only half the story. The billing model itself — how you're charged, not just how much — can add or cut thousands from your annual bill. Here's how each structure works and which one fits your Jamaican business.
Read article →
SIP Trunking
If customers aren't picking up your outbound calls, your number may already be labelled as spam by carrier systems. Here's what causes caller ID reputation damage, how to check your number's status, and how to restore it.
Read article →
SIP Trunking
One-way audio, dropped calls, and calls that disconnect after exactly 30 seconds are all NAT symptoms on your SIP trunk. The problem traces to how your router hides private IP addresses from your SIP provider — and it is fixable. Here are three proven fixes for Jamaican businesses.
Read article →
SIP Trunking
When callers press 1 for sales or enter their account PIN and nothing happens, DTMF is the most likely culprit. This guide explains why key-press tones fail on SIP trunks, how to diagnose the exact failure mode, and how to configure your PBX and router correctly.
Read article →
SIP Trunking
SIP ALG is a built-in router feature designed to help VoIP — but in most cases it does the opposite. If your business calls drop after 30 seconds, have one-way audio, or your SIP trunk keeps de-registering, your router may be the culprit. Here is what SIP ALG does and how to disable it in under five minutes.
Read article →
SIP Trunking
When your SIP trunk goes down, how fast does your business recover? The answer depends on which redundancy model you chose before the outage. Here is the difference between active-active and active-standby — and how to pick the right setup for a Jamaican business.
Read article →
SIP Trunking
Most Jamaican businesses only discover their SIP trunk is down when a customer complains. This guide covers the key metrics to watch, the alert thresholds to set, and why proactive monitoring is the difference between a resolved fault and a lost client.
Read article →
SIP Trunking
Every international call your business makes travels a route—and that route has a price. Least cost routing (LCR) is the mechanism inside a modern SIP trunk that automatically selects the cheapest path for every call. Here is how it works and what it could mean for your phone bill.
Read article →
SIP Trunking
Most Jamaican businesses are paying two, three, or four separate phone bills for lines that share the same building and the same callers. SIP trunking lets you carry every number on one virtual connection — one invoice, one contract, and capacity that scales without waiting for a technician. Here is how the consolidation works and what businesses in Kingston and Montego Bay are saving.
Read article →
SIP Trunking
876, then the exchange, then the subscriber — three parts doing three different jobs. Why local presence is now a provisioning choice rather than a fact of geography, and what that changes when you buy business numbers.
Read article →
SIP Trunking
The term is a fossil from the days of switchboard operators, but the distinction it describes still matters: some numbers are the front door, and some go straight to a room. What a DID can point at, and why it costs less than businesses assume.
Read article →
SIP Trunking
“The phones sound bad” is the least useful sentence in the conversation. Delay, unevenness and missing audio are different faults with different causes — and if all three appear at once you have one saturated link, not three problems.
Read article →
SIP Trunking
If your business calls sound robotic, cut out, or echo badly, the problem has a number — and that number is your MOS score. Mean Opinion Score is the industry-standard measure of voice call quality, and keeping it above 4.0 is the difference between callers who trust you and callers who hang up. Here is what drives MOS on Jamaican business lines and how to fix a failing score.
Read article →
SIP Trunking
Most businesses pay for four or five numbers, and most of them are idle, engaged or dead. Four analogue lines cost about J$8,800 a month; a four-channel SIP trunk costs J$10,000 and does far more — here is the audit, and the arithmetic.
Read article →
SIP Trunking
SIP trunking replaces the physical lines into your existing PBX with a connection over the internet. The phone system stays, the handsets stay, the numbers stay — the lines and the bill change.
Read article →
SIP Trunking
Lower call costs, capacity you can move the same day, local and international reach, and features that used to need a box on the wall. What SIP trunking actually gives a Jamaican business, and the two situations where it is the wrong answer.
Read article →
SIP Trunking
Most providers resell somebody else's voice network with a gateway bolted on. A SIP-native carrier runs the network itself, end to end. That difference is invisible on a brochure and obvious the first time a call quality problem needs fixing at two in the afternoon.
Read article →
SIP Trunking
When your SIP trunk drops registration, every phone in the office goes silent — no dial tone, no inbound calls, no warning. This guide walks through the five most common causes of SIP registration failure in Jamaica, how to diagnose them in minutes, and what to change so it doesn't happen again.
Read article →
SIP Trunking
Most business phone content assumes a human picks up the handset. This one does not. A voice API lets your own software place a call, answer one, read a menu, send an SMS or drop a recording — over a licensed Jamaican network with real 876 numbers. Here is what programmable SIP is, what teams actually build with it, and how to start.
Read article →Page 1 of 2 · 43 articles in SIP Trunking
Make WOCOM your preferred source on Google. It takes one tap — then our latest insights show up more prominently in your Google Search and AI results.
Google Make WOCOM my sourcePlease share your details so our team can assist you better.
Please wait while we find the best available representative