"joint call" is a correct and usable phrase in written English.
You can use it when two or more people make a vocal request together, usually by telephone. Example sentence: We made a joint call to the senator to demand action on climate change.
The union presidents issued their joint call after the transition team for President-elect Barack Obama signaled that it would prefer dealing with a united movement, rather than a fractured one that often had two competing voices.
It addressed the joint call 'Concurrent Engineering in Aeronautics' issued by the European Commission.
Despite the joint call for the meeting, not every state pension fund wants the same thing.
The three leaders also made a joint call on Iran to comply with U.N. Security Council sanctions.
In Rome, Nicolas Sarkozy and Silvio Berlusconi issued a joint call for an end to violence against the demonstrators.
Last year, eight medical organizations representing genetics, gynecology, urology and other fields made a joint call in Science magazine for tighter regulation of endocrine disruptors.
Mr. Barak and Mr. Arafat should issue a joint call for an end to the violence.
This work was supported by the Kattan trust (Royal Free Charity Fund 285) and the Wellcome Trust/ United Kingdom Medical Research Council Jointcall in Neurodegeneration award to the United Kingdom Parkinson's Disease Consortium (WT089698).
This work was supported in part by the Wellcome Trust/MRC Joint Call in Neurodegeneration award (WT089698) to the UK Parkinson's Disease Consortium (UKPDC) and Kattan Trust.
This work was supported in part by the Wellcome Trust/MRC Joint Call in Neurodegeneration award (WT089698), the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement no.
This work was supported by an Eisai PhD studentship (T.P ., Parkinson's UK (G0910 to J.M.C ., Science Foundation Ireland (07/IN.1/BG1804), the Wellcome Trust/Medical Research Council Joint Call in Neurodegeneration (WT089698).
