In a letter Thursday to FCC Chairman Tom Wheeler, the AT&T said the office has been moderate to favor a waiver for a Wi-Fi calling component that doesn’t meet FCC rules about availability for discourse and hearing-debilitated individuals.

The Dallas, Texas-based telephone organization connected for the waiver in June, wanting to dispatch the component September 25 close by Apple’s arrival of its most recent iOS 9 programming, which underpins the element. T-Mobile and Sprint, in the interim, have been putting forth the component for over a year without a waiver, infringing upon government rules, AT&T said. The organization said the FCC has done nothing to uphold its regulations.

The letter comes in the midst of cases by the country’s second-biggest remote supplier that it’s being singled out by the FCC. Not long ago, the commission reported it would look for a $100 million fine against AT&T for deluding clients who needed its boundless information arrangement. The organization backs off the administration without fitting warning or clarification, the FCC said, an infringement of office standards. AT&T denies the affirmation. The organization has additionally been wrangling with the FCC over guidelines for a forthcoming closeout of remote range. The sale will set aside a piece of licenses that just littler administrators can offer on, barring offers from bigger players AT&T and Verizon.

“There is developing worry at AT&T that there is an asymmetry in the utilization of government regulations to AT&T from one viewpoint and its commercial center rivals then again,” Jim Cicconi, head of administrative issues for AT&T, wrote in the letter. “This circumstance essentially stokes the flame.”

The FCC declined to remark on Cicconi’s case that the organization hasn’t split down just as on principle infringement. Be that as it may, a FCC representative said the office hasn’t been dawdling on the waiver application. Rather, general society remark period shut just as of late and the office is looking into the comments.

AT&T claims T-Mobile and Sprint, which have been putting forth an element that lets telephone calls consequently change to a Wi-Fi association when a phone association is frail, aren’t conforming to FCC guidelines requiring voice administration to give lodging to the discourse and hearing-hindered.

The issue is that TTY gadgets don’t work dependably over Wi-Fi associations, and AT&T has conceived an option arrangement, which it cases is in fact better than TTY. The organization said in its letter that handicap backers bolster its “constant content,” or RTT, arrangement, need it actualized rapidly, and for the most part backing AT&T’s solicitation for a brief waiver.

AT&T says all information transfers administrations are required to bolster teletypewriter administration, or TTY, which lets the discourse and hearing-debilitated sort messages via telephone system utilizing gadgets with consoles.

In a different continuing, AT&T has requested that the FCC supplant the out of date innovation utilized as a part of the more established TTY rules with its answer. Until that issue is settled, the organization has asked for a makeshift waiver of the principles keeping in mind the end goal to give Wi-Fi calling.

AT&T said in its letter that T-Mobile and Sprint have been putting forth Wi-Fi calling administrations for “well over a year on Android gadgets and for a considerable length of time on iOS gadgets,” with neither one of the carriers asking for a waiver of the TTY regulations. AT&T said it won’t offer the Wi-Fi calling element until its waiver appeal is affirmed.

T-Mobile said in an announcement that it’s “in full consistence with the FCC tenets concerning satellite internet.” Sprint declined to remark.

“We are not in a position to give Wi-Fi calling administrations to our clients even while our rivals give those administrations in disobedience of the commission’s principles,” Cicconi composed.