Troubleshooting
585
The difference between Shared Call Appearance (SCA) and Bridge Lines
Appearance (BLA)
SCA and BLA are similar signaling methods that enable more than one phone to share a SIP line. The
method you use varies with the SIP server you are using. In the configuration files, the relevant
configuration parameters of SCA and BLA are different. The barge-in and call pull feature are not
available with BLA; but they are available with SCA.