Connect your PBX to the network with limits you set.
Elastic SIP trunks for PBXs and contact centres, with channel limits, caller ID control and a CDR for every call.
Carrier-grade basics, without the paperwork
Registration and IP auth
Authenticate trunks by credentials or by allow-listed IP, with TLS and SRTP where your equipment supports them.
Channel limits
Cap simultaneous calls per trunk and per direction, so one runaway dialler cannot use the whole account.
Caller ID control
Verified caller IDs per trunk, with country-specific presentation rules applied for you.
Codec and DTMF options
G.711, G.729 and Opus [CONFIRM CODECS], with RFC 2833 and in-band DTMF.
Failover
Primary and backup signalling endpoints, plus automatic reroute when a destination route degrades.
CDRs and quality stats
Per-call records with setup time, duration, hang-up cause and quality metrics, available by API.
Point your PBX at Telnxo
Create a trunk
Name it, set channel limits and choose an authentication method.
Add numbers
Attach inbound numbers and verified outbound caller IDs.
Configure your PBX
Use the SIP host and credentials shown in the console.
Test and monitor
Place a test call and watch live channels and CDRs.
Details your network team can check
Every value your PBX needs is shown on the trunk page, and the same values are available by API.
host sip.telnxo.com [CONFIRM HOST] port 5061 (TLS) | 5060 (UDP/TCP) auth credentials | IP allow-list codecs PCMU, PCMA, G.729, Opus dtmf RFC 2833 channels 50 (adjustable per trunk)
Frequently asked questions
Can I run a contact centre on it?
Yes. Trunks work with common dialler and contact-centre platforms, with limits and caller ID rules per campaign.
Which countries can I terminate calls in?
Coverage and rates are listed per country on the pricing page. [CONFIRM COVERAGE]
Is there a minimum commitment?
Plans and commitments are on the pricing page. [CONFIRM TERMS]
Start sending in minutes
Create an account, verify your sender, and send your first message today.