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Airtel Business sells SIP trunks. Airtel has no carrier preset in Bolna, so you connect it as a Custom SIP trunk.
Airtel does not publish its SIP trunk settings, so your Airtel Business account team sets up their side. Send them the values in What to send Airtel.

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Before you begin

Get these from your Airtel Business account team:
  • An Airtel SIP trunk with at least one Airtel phone number on it.
  • The host and port Bolna dials for outbound calls.
  • The IP addresses Airtel sends calls from.
  • A SIP username and password, if Airtel authenticates the calls Bolna places with credentials instead of Bolna’s IPs.

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What to send Airtel

Ask Airtel to send calls for your numbers to Bolna and to accept calls from Bolna: The SIP trunk overview lists the media ports.

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Create the trunk in Bolna

1

Pick Custom

In the sidebar, under Deploy, open SIP Trunks and click Create trunk. If your account still has legacy SIP trunks, click Open new SIP trunks first. On the Provider step, pick Custom and enter a Trunk name and the number of Channels.If Airtel’s port is 5060, enter the host in Gateway we dial. If it is any other port, leave the field empty: it always uses port 5060, so you add the gateway after the trunk is created. Click Continue.
2

Add Airtel's IPs and credentials

On the Carrier IPs step, add each IP address Airtel sends calls from. Bolna accepts an inbound call only from these addresses.If Airtel gave you a SIP username and password, enter them under Carrier credentials (optional). Click Continue.
3

Add your Airtel numbers

On the Numbers step, enter each Airtel number in E.164 format, for example +91XXXXXXXXXX, and click Add. Click Continue, check the summary and click Create trunk.
4

Add the gateway if needed

If you left Gateway we dial empty, open the trunk’s Connection tab. Under Outbound: gateways, click Add gateway and enter Airtel’s Host and Port, with Priority 1.
For every field on these steps, see Connect your carrier.

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Assign an agent and test

  • Inbound: open the trunk’s Numbers tab and, in the Agent column, pick an agent for your Airtel number. Then call the number. See Receive inbound calls.
  • Outbound: on the agent’s Calling tab, set Telephony Provider to SIP Trunk. In the agent’s outbound call dialog, pick your Airtel number as the caller ID, enter the number to call and click Place call. See Make outbound calls.
If a call does not connect, see Troubleshooting.