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What is Vobiz SIP trunking used for in a Bolna voice agent?
Vobiz SIP trunking connects your Vobiz numbers to a Bolna voice agent over SIP, so the agent answers calls to those numbers and calls out from them through Vobiz. It is different from the native Vobiz integration, which connects your Vobiz account to Bolna as a telephony provider. Vobiz uses an outbound trunk for the calls Bolna places and an inbound trunk for calls to your numbers, and both connect to one trunk in Bolna.
How do I set up a Vobiz SIP trunk with Bolna?
- You need a Vobiz account with balance and at least one Vobiz number. In the Vobiz Console, open SIP Trunk > Outbound Trunks and click + Create New Trunk.
- Under Authentication & Linking, add a credentials list, or an IP access control list with Bolna's IPs
15.252.21.46and13.206.230.198. Create the trunk and copy its SIP Domain, such asaabbccdd.sip.vobiz.ai. - Open SIP Trunk > Inbound Trunks > Origination URI and add
trunk.bolna.ai:5060with UDP or TCP transport. - Create an inbound trunk with that origination URI as the Primary URI, then use Link Numbers to link your Vobiz numbers.
- In Bolna, under Deploy, open SIP Trunks, click Create trunk and pick Vobiz. Paste the SIP Domain into Gateway we dial.
- On the Carrier IPs step, add
13.233.44.61,3.111.255.163and3.111.128.110. Enter your Vobiz credential under Carrier credentials (optional) if you made one. - Add your Vobiz numbers in E.164 format, such as
+91XXXXXXXXXX, and create the trunk. Assign an agent to each number, and set the agent's Telephony Provider to SIP Trunk for outbound calls.
Every step is in the Vobiz SIP trunk setup guide in the Bolna docs.
Which Vobiz SIP settings does Bolna use?
| Setting | Vobiz with Bolna |
|---|---|
| Origination URI in Vobiz | trunk.bolna.ai:5060, UDP or TCP, not TLS |
| Outbound gateway in Bolna | Your trunk's SIP Domain, such as aabbccdd.sip.vobiz.ai, not sip.vobiz.ai |
| Vobiz recognises Bolna by | A credentials list, or an IP access control list with 15.252.21.46 and 13.206.230.198 |
| Vobiz IPs on the Bolna trunk | 13.233.44.61, 3.111.255.163, 3.111.128.110 |
| Vobiz credential password | 5 to 20 characters with at least one of ~!@#$%^&*()_+ |
| Codecs | PCMU and PCMA |
| Audio (RTP) | UDP 30000 to 40000, to and from 15.252.21.46 |
What can you build with Vobiz SIP trunking and Bolna?
Indian inbound lines. Link Vobiz numbers to the inbound trunk and map each one to a Bolna agent on the trunk's Numbers tab.
Outbound campaigns from Vobiz numbers. Run single calls or batches with your Vobiz numbers as caller ID. Calls wait in the queue when every channel on the trunk is busy.
Caller context on every call. Inbound calls fill from_number, to_number and call_sid, and you can look the caller up in your CSV, API or Google Sheet.
Hand off to a person. Transfer a live trunk call to a person through the same trunk with the agent's transfer tool.
To connect your Vobiz account as a telephony provider instead, see Vobiz telephony for Bolna. For other carriers, see the generic SIP trunk page.