Just exec your custom .cfg file again… if you happened to put those binds into a custom file that is.
If not, you must have created those binds manually in the console I suppose. So, either enter your binds directly in the console again or use a more recommended approach and put your binds in a custom .cfg file.
For example:
// Filename: buddysbinds.cfg
// Purpose: Custom Binds for Wolfenstein - ET
// ====== Basics ======
name [C|2ouching]Buddy
// ====== Voice Chats ======
bind KP_HOME "vsay_team Welcome" //Keypad 7
bind KP_UPARROW "vsay_team NeedAmmo" //Keypad 8
bind KP_PGUP "vsay_team Medic" //Keypad 9
Now just put this file (which is just a plain-text file saved with a .cfg extension) into the etmain directory and type: /exec buddysbinds.cfg in the console whenever you need to reapply or change your settings.