Menu
Write a review
File a complaint
Optimum

Optimum review: Cell phone service

R
Author of the review
3:37 pm UTC
Verified customer The reviewer confirmed their account using Google. Learn more
Featured review
This review was chosen algorithmically as the most valued customer feedback.

I’ve had an intermittent problem with your service from day 1. It’s been to the engineering dept.a few month ago. It was ok for a while but now it happened when I called the cardiologist when I was having problems after a pacemaker procedure. I couldn’t get thru.

The problem is the(DTMF Tones are not being received at the called party. DTMF Tones are used extensively, in business as options for the called party to select various departments or extensions. If this option doesn’t work, the phone is useless.

This is the real signal strength measurement table.
• –44 to –80 dBm → Excellent / strong
• –80 to –100 dBm → Good / usable
• –100 to –110 dBm → Weak
• –110 to –120 dBm → Very weak
My number: –116 dBm That puts it in the very weak range.

I need this escalated immediately. I am experiencing a documented in home coverage failure with signal levels around –116 dBm, making voice service unreliable.

My device is repeatedly switching between Wi Fi Calling and weak LTE, which causes DTMF tones to fail and prevents me from using automated systems. This is a network reliability issue, not a device issue.
I am requesting a coverage remediation ticket and escalation to the Network Engineering Team.

My neighbor on the same T Mobile network received a network signal booster from T Mobile for the identical issue. Since Optimum Mobile operates on the T Mobile network, I need this escalated to the carrier support liaison so the same coverage solution can be evaluated for my address.
Please document the following in my case: – In home coverage failure – Unusable VoLTE service – Intermittent Wi Fi Calling fallback – DTMF tone transmission failure – Signal levels at –116 dBm

If Optimum cannot provide reliable service at my location or refuses to escalate this to engineering, I need that documented so I can proceed with an FCC wireless service complaint for unresolved coverage issues.

I am not requesting basic troubleshooting. I am requesting network engineering escalation.

Claimed loss: intermittent service

Desired outcome: Fix Problem permanently or cancel service including purchased phone

Confidential Information Hidden: This section contains confidential information visible to verified Optimum representatives only. If you are affiliated with Optimum, please claim your business to access these details.

0 comments
Add a comment
  1. Optimum Contacts

  2. Optimum phone numbers
    Click up if you have successfully reached Optimum by calling +1 (866) 200-7273 phone number 3 3 users reported that they have successfully reached Optimum by calling +1 (866) 200-7273 phone number Click down if you have unsuccessfully reached Optimum by calling +1 (866) 200-7273 phone number 43 43 users reported that they have UNsuccessfully reached Optimum by calling +1 (866) 200-7273 phone number
    Customer Service
    Click up if you have successfully reached Optimum by calling +1 (973) 230-6048 phone number 0 0 users reported that they have successfully reached Optimum by calling +1 (973) 230-6048 phone number Click down if you have unsuccessfully reached Optimum by calling +1 (973) 230-6048 phone number 1 1 users reported that they have UNsuccessfully reached Optimum by calling +1 (973) 230-6048 phone number
    New Jersey, CS
    Click up if you have successfully reached Optimum by calling +1 (973) 230-2037 phone number 0 0 users reported that they have successfully reached Optimum by calling +1 (973) 230-2037 phone number Click down if you have unsuccessfully reached Optimum by calling +1 (973) 230-2037 phone number 0 0 users reported that they have UNsuccessfully reached Optimum by calling +1 (973) 230-2037 phone number
    New Jersey, Sales
    Click up if you have successfully reached Optimum by calling +1 (203) 870-2583 phone number 0 0 users reported that they have successfully reached Optimum by calling +1 (203) 870-2583 phone number Click down if you have unsuccessfully reached Optimum by calling +1 (203) 870-2583 phone number 0 0 users reported that they have UNsuccessfully reached Optimum by calling +1 (203) 870-2583 phone number
    Connecticut, CS
    Click up if you have successfully reached Optimum by calling +1 (203) 870-2492 phone number 0 0 users reported that they have successfully reached Optimum by calling +1 (203) 870-2492 phone number Click down if you have unsuccessfully reached Optimum by calling +1 (203) 870-2492 phone number 0 0 users reported that they have UNsuccessfully reached Optimum by calling +1 (203) 870-2492 phone number
    Connecticut, Sales
    Click up if you have successfully reached Optimum by calling +1 (631) 393-0637 phone number 0 0 users reported that they have successfully reached Optimum by calling +1 (631) 393-0637 phone number Click down if you have unsuccessfully reached Optimum by calling +1 (631) 393-0637 phone number 0 0 users reported that they have UNsuccessfully reached Optimum by calling +1 (631) 393-0637 phone number
    Long Island, CS
    Click up if you have successfully reached Optimum by calling +1 (631) 393-0707 phone number 1 1 users reported that they have successfully reached Optimum by calling +1 (631) 393-0707 phone number Click down if you have unsuccessfully reached Optimum by calling +1 (631) 393-0707 phone number 0 0 users reported that they have UNsuccessfully reached Optimum by calling +1 (631) 393-0707 phone number
    100%
    Confidence score
    Long Island, Sales
    Click up if you have successfully reached Optimum by calling +1 (718) 860-3514 phone number 0 0 users reported that they have successfully reached Optimum by calling +1 (718) 860-3514 phone number Click down if you have unsuccessfully reached Optimum by calling +1 (718) 860-3514 phone number 0 0 users reported that they have UNsuccessfully reached Optimum by calling +1 (718) 860-3514 phone number
    NY: Bronx / Brooklyn / Westchester, CS
    Click up if you have successfully reached Optimum by calling +1 (718) 975-1140 phone number 0 0 users reported that they have successfully reached Optimum by calling +1 (718) 975-1140 phone number Click down if you have unsuccessfully reached Optimum by calling +1 (718) 975-1140 phone number 0 0 users reported that they have UNsuccessfully reached Optimum by calling +1 (718) 975-1140 phone number
    NY: Bronx / Brooklyn / Westchester, Sales
    More phone numbers
  3. Optimum emails
  4. Optimum address
    6 Corporate Center Drive, Melville, New York, 11747, United States
  5. Optimum social media
  6. Janet
    Checked and verified by Janet This contact information is personally checked and verified by the ComplaintsBoard representative. Learn more
    May 28, 2026
  7. View all Optimum contacts