Troubleshooting
871
What is the difference between enabling and disabling the RFC 2543
Hold feature?
Capturing packets after you enable the RFC 2543 Hold feature. SDP media direction attributes
(such as a=sendonly) per RFC 2543 is used in the INVITE message when placing a call on hold.
Capturing packets after you disable the RFC 2543 Hold feature. SDP media connection address
c=0.0.0.0 per RFC 3264 is used in the INVITE message when placing a call on hold.
For more information on RFC 2543 hold feature, refer to
. For more
information on capturing packets, refer to
What is 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.
Summary of Contents for SIP-T19 E2 T4 Series
Page 1: ...63 ...
Page 532: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series IP Phones 510 ...
Page 734: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series IP Phones 712 ...
Page 814: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series IP Phones 792 ...
Page 850: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series IP Phones 828 ...
Page 887: ...Troubleshooting 865 The phone begins rebooting Any reboot of the phone may take a few minutes ...