Optimum Calls offers their customers line rental and service in exactly the same way as BT Retail. Optimum Calls Wholesale Business Plans re-bill the customer for these services at a reduced cost using the same network.
| Website | http://www.optimumcalls.com |
| Revenue | $1 million |
| Employees | View employees |
| Phone | +44 844 372 3412 |
| Industry | Telecommunications General, Telecommunications |
| Competitors | RingCentral, Nextiva, Grasshopper, Vonage, 5nine, Inc., Twilio, Dialpad, 8x8, Ooma, Inc., Phone.com +41 more (view full list) |
| SIC | SIC Code 481 Companies, SIC Code 48 Companies |
| NAICS | NAICS Code 517911 Companies, NAICS Code 5179 Companies, NAICS Code 51 Companies, NAICS Code 51791 Companies, NAICS Code 517 Companies |
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Optimum Calls Questions
The Optimum Calls annual revenue was $1 million in 2026.
The NAICS codes for Optimum Calls are [517911, 5179, 51, 51791, 517].
The SIC codes for Optimum Calls are [481, 48].
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