Snom Function Key / BLF

Hi all,

i ve troubles with setting up function keys over AsteriskNOW to my Snom 370 telephone.

As example I configured a function key with the follow Parameter:
(not working, strange output on my telephone:

If I set < and > for < and > like:

It will be work for one time only. I see it as " sip:231@|**" after restarting my telephone and AsteriskNOW.

The keys are broken after edit / save the next time.

Any Ideas?

thanks and regards