Do I need more than one provider?

Usually not at the start. One provider that covers your channels is simpler. Add a second when a country, a channel or a cost line clearly favours it, or when you want a fallback.

Can one WhatsApp number use two providers at once?

No. A WhatsApp number is connected through one provider at a time. You can run different numbers on different providers, and move a number later.

Does Arino One add a markup to provider prices?

No. Each provider bills you directly on your own account. Arino One plans are flat by team size.

Can I add a provider later?

Yes. Start on one and add others from the setup wizard or Settings whenever you need them; existing conversations stay where they are.

Infobip vs Meta Direct vs Twilio: When to Mix Providers

Arino One runs on the providers you choose. Most teams start with one. This guide explains what each of the three common choices is best at, and the few situations where mixing them is worth the extra setup.

In Short
Infobip covers every channel and both kinds of calling (phone calls and WhatsApp calls).
Meta Direct puts WhatsApp on your own Meta App and unlocks Meta Business Agent.
Twilio fits US numbers and setups you already run on Twilio.
Mixing makes sense when a country, channel or cost line favours a different provider.

Provider	Strongest for	Calls	Worth knowing
Infobip	One account for WhatsApp, SMS, RCS, Viber, Telegram, email and more	Phone calls and WhatsApp calls	An official Meta Business Solution Provider; Arino One is an Infobip partner
Meta Direct	WhatsApp on your own Meta App through the Cloud API	WhatsApp calls	WhatsApp only; Meta bills you directly; needed for Meta Business Agent
Twilio	US numbers and existing Twilio projects	Phone calls	US SMS from local numbers needs A2P 10DLC registration

Sources: Meta describes the Cloud API Calling feature for receiving and making WhatsApp calls (Meta for Developers); Meta Business Agent runs on numbers managed through the Cloud API (Meta Business Agent docs); US carriers require A2P 10DLC for application messages on local numbers (Twilio docs); Infobip lists its supported channels in its documentation (Infobip docs).

When Mixing Is Worth It

Your own Meta account, plus Infobip for voice

If you want WhatsApp on your own Meta App (for direct billing from Meta, or to use Meta Business Agent), connect it with Meta Direct. Keep Infobip for phone calls and the other channels. Both show up in the same inbox.

German numbers through seven

For SMS to +49 numbers, a local supplier such as seven can be a better fit on price. Compare current rates on each supplier's own price list before you switch; we do not quote them here [Source Needed]. Add seven as an SMS supplier and send +49 traffic to it with a routing rule by country.

US numbers you already have on Twilio

If your US numbers and A2P 10DLC registration already live on Twilio, keep them there. Connect Twilio and route US traffic to it, rather than re-registering elsewhere.

A fallback provider

A second provider can take over when the first returns an error. Set a fallback rule so a failed SMS retries on the other provider.

When One Provider Is Enough

If your customers are mostly in one region and you use a handful of channels, one provider is simpler: one account, one bill, one place to check delivery. Start on Infobip, which covers every channel, and add another provider later from the setup wizard when a clear reason appears. See Choosing Your First Provider.