This file here has just about all the airlines and other callsigns that FS9 has in it, without the need to use editvoicepack. Just drop it in the main aircraft folder and enjoy.

FS2004 Revised 'airlines cfg' File. This file has most of the airlines of the world included. By Terry Noble. 8K
The third one on this page.
http://www.simviation.com/simviation/st ... 91&page=13From the readme file included:
simply replace you're airlines config file in fs2004/aircraft with this file included
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description: this file replaces the default airline callsigns with those of the world