# Guard channel Dedicated channels reserved for [handoff](Handoff.md) only. A blocked call is better than a dropped call. ## How many to reserve? This is a complicated question and wasn't covered in [TELE4652](../../../Spaces/University/TELE4652/MOCs/Mobile%20and%20Satellite%20Communications.md). [^1] # References [^1]: [TELE4652-lecture-01](../../03%20-%20University/TELE4652/Lectures/TELE4652-lecture-04.pdf)