Zyxel Zyxel P-2602H-D1A phone book limitations

The speed dial function of the P-2602H-D1A phone book has only 10 digits
and
does not seem to support pause characters in the telephone numbers.
For maintenance the modem can be accessed via a web- as well as a
telnet- and ftp interface.
For the latter two I cannot find more detailed info at Zyxel
(http:// www.zyxel.com en ftp://ftp.zyxel.com) or elsewhere on the web
or usenet.
If somebody knows of more resources then please respond.
Thanks in advance.

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Have fun, Bert