Cisco Systems SPA8000 Telephone Accessories User Manual


 
Configuring Voice Services
SIP Trunking and Hunt Groups on the SPA8000
ATA Administration Guide 87
4
Additional Notes About Trunk Groups
This section includes information about other topics that may be of interest when
you are configuring trunk groups:
Voice mail: There is no individual mail box for a trunk line. For example, if lines 1,
2, 3, and 4 belong the trunk group T1, then the four lines implicitly share the
same voice mail box from the ITSP. When there is new voice mail waiting in the
trunk mail box, the UAs for all four lines will be notified by the ITSP via the
internal Proxy, and all four lines will show the message waiting indicator, such
as by playing stutter dial tone, if enabled by the administrator.
Supplementary features: Supplementary features are offered at the line level
only, not at the trunk level. Via the PBX, the phone user can trigger/control
supplementary service and settings by signaling to the line port or configuring
the line parameters. For more information, refer to the Appendix B, “ATA Voice
Field Reference.”