Looking for reliable SIP provider (calls to US)

mike_ph · Aug 5, 2026

I'm looking for reliable SIP trunk provider for US calls with decent connection rate. Own semi-warm DB, manual dialing, no scam, no nuisance calls or anything similar.
But like with any not super warm DB we don't get those 120 sec+ ACDs and ASR might be not that great (but not awful).
Any suggestions/recommendations?

starkwaters · Tuesday at 3:38 AM

If you are doing manual dialing @mike_ph you probably want to steer clear of the strict tier 1s like twilio. they will hit you with surcharges or just suspend the account if your acd drops under 60 seconds too often. try looking at telnyx or maybe commio... telnyx is usually pretty tolerant with conversational traffic as long as you are not running automated scripts and keep the concurrent channels low. just make sure you get your stir/shaken profile sorted with whoever you use or your connection rate will tank anyway because of the carrier spam labels.

Zephyroo · Wednesday at 4:46 AM

the advice about avoiding twilio is spot on, they will kill your margins with short duration surcharges if your average call length drops too low. for manual dialing with semi warm lists you might want to look at bulkvs or maybe signalwire. bulkvs is pretty barebones but their rates are solid and they don't really bother you as long as you aren't running automated voice broadcasts. also make sure you register your caller ids with freecallerregistry and call transparency... if you don't do that your connection rate is going to drop to zero in a couple of weeks anyway because of the spam labels on cell networks.

mike_ph · Wednesday at 8:52 AM

Zephyroo said:
the advice about avoiding twilio is spot on, they will kill your margins with short duration surcharges if your average call length drops too low. for manual dialing with semi warm lists you might want to look at bulkvs or maybe signalwire. bulkvs is pretty barebones but their rates are solid and they don't really bother you as long as you aren't running automated voice broadcasts. also make sure you register your caller ids with freecallerregistry and call transparency... if you don't do that your connection rate is going to drop to zero in a couple of weeks anyway because of the spam labels on cell networks.

I was trying to sign up with free caller registry yesterday and it seems to be only focused on US business entities, without any options for international companies to sign up. Of course I can use some fake US info, but that's kinda weird.

genetwist · Wednesday at 9:33 AM

Would you need a number? SMS? How many minutes/month? Concurrent calls? Approx ACD? ACR?

mike_ph · Wednesday at 1:18 PM

genetwist said:
Would you need a number? SMS? How many minutes/month? Concurrent calls? Approx ACD? ACR?

Yes, we need signed CIDs with a good reputation.
We only use transactional messages atm, however we can reconsider this if you have any reliable route for marketing ones. I'm also looking for sms providers too btw.
<10 concurrent calls, ~17-20k min per month atm, but we gonna add more agents once we sort out all the processes.
ASR/ACD 92%, 44 sec.

Looking for reliable SIP provider (calls to US)

mike_ph

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