Every line needs a number in front of it. Voho does not sell numbers: you bring one you already have, and point it at an agent. Your carrier stays yours, and so does the bill for the line. There are two ways a number reaches an agent. Both are set up on the Phone Numbers page of the console.

From Twilio

Connect your Twilio account and import the numbers it already owns.

Any carrier, over SIP

A Saudi 011, 013, 9200 or 800 number from GO, Mobily, stc, Zain, Maqsam or any other carrier, or your own PBX.

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From Twilio

Connect your Twilio account with its Account SID and auth token, then Import numbers. Every voice-capable number the account owns is listed. Assign an agent to one and its incoming calls go to that agent; remove the agent and the number is handed back. Nothing is bought on your behalf, and your Twilio bill stays yours.

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Any carrier, over SIP

For a number you already have with a carrier, including the Saudi numbers Twilio does not sell. Your carrier sends the calls for that number over SIP to your Twilio account, and Twilio hands them to your agent. Nothing about the number changes: no porting, no notice period, no window where callers reach a dead line.
1

Connect Twilio

SIP calls arrive through your own Twilio account, so connect it first. You do not need to buy a number there. Use an upgraded account: a trial account plays Twilio’s own message at the start of every call.
2

Create a SIP trunk

On Phone Numbers, choose Import number, then Any carrier, over SIP. Give it a name and list the numbers your carrier routes down it, as +966112345678 or the local 0112345678, 9200… or 800… form. If your carrier gives you the IP addresses it sends calls from, add them too.
3

Send the details to your carrier

Voho sets up a SIP address for the trunk in your Twilio account and shows you, once, what your carrier needs:The password is shown once. If it is lost, delete the trunk and create another.
4

Assign an agent

Pick an agent for each number. The trunk shows pending until the first call arrives, then active.
Carriers do not all put the dialled number in the request URI. If yours sends a pilot number or an extension instead, a trunk with a single number still routes every call to it. With several numbers on one trunk, ask the carrier to send the dialled number.
Over SIP, numbers answer incoming calls. Outbound calls and instant lead calls need a Twilio number today.

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Getting a Saudi number

If you do not have a number yet, take one from a Saudi carrier that offers SIP, then bring it as above. Geographic (011, 012, 013), 9200 unified and 800 toll-free numbers are all offered over SIP by Saudi carriers; mobile-looking 05 numbers are generally not. Number provisioning in Saudi Arabia is the carrier’s process and subject to Saudi regulation. Expect to identify the legal entity taking the number and the person authorised to sign for it, and do not commit a launch date to your own customers until the carrier has confirmed the number.

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Cost

Voho bills the agent per connected minute, from your Voho balance. The number, the line and the carrier’s minutes are billed by your carrier and by Twilio, directly to you. Voho does not resell or mark up carrier minutes.