AT&T MERLIN LEGEND Calling Group Supervizor's Manual page 59

Calling Group Agent Activities
To Sign In and Out Using Feature Codes
1. To sign in to the calling group:
On MLX phones, press Feature and dial 44.
On analog multiline phones, press programmed Feature
button and dial 44.
On single-line phones, lift handset and dial #44.
2. To sign out of the calling group:
On MLX phones, press Feature and dial *44.
On analog multiline phones, press programmed Feature
button and dial *44.
On single-line phones, lift handset and dial #*44.
5-4 Signing In and Out of the Calling Group