EE reported a return to growth in the first six months of 2015, despite seeing only marginal improvement in turnover during Q2.
Adjusted earnings grew 9.2 percent to £830 million (€1.16 billion) in H1, while margins increased 2.2 percent points to 26.6 percent.
EE did not disclose how EBITDA had performed on a quarterly basis. However, turnover was up just 0.6 percent to £3.1 billion (€4.3 billion) in the three months to June.
Meanwhile, second-quarter operating revenue - which includes mobile service revenue and wholesale and home broadband sales - was up 0.1 percent to £1.5 billion (€2.1 billion). Excluding regulatory impact, this represented a 2.2 percent growth.
4G continues to be the standout performer for the UK operator, with EE adding 1.5 million new subscribers in Q2.
The operator said its total 4G customer base now stands at 10.9 million, representing growth of nearly 160 percent year on year.
EE claimed its 4G network now reaches 90 percent of the UK population, covering over 600 major towns and cities and more than 6,200 smaller municipalities.
The company also said its corporate 4G customer base rose seven percent year on year to more than 8,300.
Postpaid net adds, including M2M, were up 0.3 percent to 30.9 million in Q2.
EE said EETV had helped drive “significant fixed-line growth”, adding 35,000 broadband subscribers.
As a result, the operator claimed fixed sales were up 18 percent year on year, but failed to disclose exact figures.
Meanwhile, EE said its new Connected Strategy was “starting to deliver”.
It claimed its Wi-Fi user base was up 27 percent in Q2 following the launch of its Wi-Fi calling in April, while its tablet base increased by 63 percent.
Additional initiatives, such as the launch of the EE Action Cam in June, also help boost the number of connections to the network, EE said.
The operator awaits the outcome of its proposed merger with UK incumbent BT.
CEO Olaf Swantee said: “Our established leadership in 4G and key differentiators such as Wi-Fi calling are working well for the business. We’re the clear network market leader and this, combined with our strong operational performance, has led to a return to revenue growth while delivering our best ever EBITDA margin.
“The business continues to focus squarely on improving customer satisfaction and on cross-selling our innovative range of consumer and B2B 4G connected products.”