The survey found that only about 18 percent of subscribers have acquired bundled landline and wireless service plans but that more than 31 percent actually want such bundles, according to In-Stat. The study noted that other competitors such as cable companies may be more ready to provide such bundles than the incumbent telecoms.
"The telcos may be missing an opportunity that the cable companies may soon be capitalizing on," In-Stat analyst David Chamberlain said in a statement.
For instance, Sprint recently announced a far-ranging joint venture with several large cable providers for combining voice, data and entertainment services.
The survey also found that landline long distance services are continuing to suffer because of increased use of wireless voice service. The survey found that respondents had reduced landline long-distance calling by 60 percent and local calling by 46.9 percent.