Key takeaways
- An SMS aggregator saves a business from signing and maintaining an agreement with every mobile operator.
- Aggregators reach operators over direct connections, partner direct routes and other providers’ routes, and the mix decides delivery quality.
- No provider is directly connected to every operator in every country, so the useful question is which route serves which destination.
- Ask how routing reacts when a route has problems and whether delivery reports come from the operators.
What an SMS aggregator does
An SMS aggregator is a messaging provider that connects many senders to many mobile operators. Instead of negotiating and integrating with an operator in every country, a business connects once and the aggregator handles the routes behind that connection.
The word is descriptive rather than a quality rating. Some aggregators have strong direct operator connections and careful routing. Others mainly pass traffic on to other providers. What matters is the route your messages actually take.
How a message reaches the operator
Between your application and a handset there can be one party or several. These are the route types you will hear about.
| Route type | What it is | What to consider |
|---|---|---|
| Direct connection | The provider connects to the mobile operator itself, with no other provider in between. | The shortest path, with fewer points of failure and usually clearer delivery reports. No provider has one for every operator. |
| Partner direct | A direct operator connection run by a partner and used by the provider to extend its reach. | Keeps the route short while coverage grows. Ask how the route is monitored. |
| Via another provider | The message passes through one or more other messaging providers before it reaches the operator. | Can widen coverage, but each extra step can add delay and one more place where a message is filtered or lost. |
| Grey route | A route that bypasses proper operator agreements. | Can look cheap on paper but often delivers poorly or is blocked. Avoid it for important traffic. |
Aggregator or direct: the wrong question
Because no provider is directly connected to every operator, almost every global provider uses a mix of routes. Asking whether a provider is an aggregator tells you little.
The useful questions concern your own traffic: which of your destinations are served directly, which over partner or other routes, how routing reacts when a route degrades and how delivery is reported back to you.
Questions to ask any provider
- Which of my destination countries are served over direct connections, and which over other routes?
- Is any of my traffic sent over grey routes? It should not be.
- How many upstream providers do you use, and what happens if one has problems?
- Do delivery reports come from the operators, and how detailed are they in my countries?
- How is sender name registration handled where a country requires it?
- How will I be told when a route changes or degrades?
How ZafeConnect connects you to operators
ZafeConnect combines direct operator connections with partner direct routes to reach more than 190 countries, and uses intelligent routing with fallback, multiple upstream providers and real operator delivery reports.
Which route serves which country depends on the destination. Tell us your countries and we will go through the setup with you.