I just try with another phone. The first was a Nokia 6630. The last is Nokia 7280.
With this model, all is OK. I have seen on Gnokii site and then, I red that some models are not, today, compatible. Nokia 7280 isn't on the good list, but Phonelink works well with it.
Perhaps it's necessary to make a modification in gnokiirc file for Nokia 6630 model?
Any idea or experience ?