Datasheet

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• H.323 FastStart—Support for inbound and outbound H.323 FastStart. This feature reduces the number of signals exchanged before voice is
extended on a call. By using H.323 FastStart voice will be extended or cut-through using 10 less message exchanges. This can eliminate voice
clipping connections that are separated by large distances with more than 50ms WAN delay. MTPs are required for outbound H.323 FastStart.
• MGCP BRI ETSI BRI basic-net3 (user-side only)—Allows a smaller, more cost-effective ISDN connection between Cisco CallManager and the
PSTN for small offices where the cost of a Primary Rate Interface (PRI) is prohibitive.
• MLPP enhancements
– BRI station pre-emption.
– Support for MLPP-enabled, user-to-user information element (UUIE)-based PRI-4ESS interface.
– Executive override precedence level; gives an additional precedence level that was previously unsupported.
– Location-based MLPP through locations over intracluster and intercluster limited bandwidth WAN links.
– Support for intercluster MLPP.
– The signal information element, as described in 4.5.24 of ANSI T1.607.
• Q.SIG enhancements
– Alerting name—Support of alerting name presentation and restriction for Q.SIG facilities. “alerting name” is the capability to send and
receive a CalledName application protocol data unit (APDU) encapsulated in a facility information element within the ISDN Q.931
message. This is an optional capability specified in ISO 13868 as part of the SS-CONP feature; it provides “alerting on ring” only.
“Alerting on busy” (an optional service that provides the name of the called user who cannot be reached) is not supported by this feature.
– Call back/call completion—Support for ISO/IEC 13870: 2nd Ed, 2001-07 for Call Completion Supplementary Service:
– Call Completion to Busy Subscriber (CCBS)
– Call Completion on No Reply (CCNR)
– Call diversion by reroute in addition to call diversion by forward switching—Call Diversion Supplementary Service ISO/IEC 13872 and
ISO/IEC 13873, first edition 1995.
– H.323 Annex M.1 (Q.SIG over H.323)—Delivers the Q.SIG feature set across intercluster trunks by the tunneling of Q.SIG messages by the
Cisco CallManager over H.323, based on recommendations in the ITU recommendation for Annex M.1: “Tunneling of QSIG in H.323
07/2003”. This development is limited to Q.SIG tunneling over Cisco CallManager H.323 intercluster trunks (both gatekeeper- and
nongatekeeper-controlled). Interoperability between Cisco CallManager servers is the focus of this first release of Annex M.1.
– Path replacement—Replace the existing time-division multiplexing (TDM) circuit(s) in use between two parties on an active call with new
ones, to use TDM resources more efficiently. The Q.SIG path replacement feature will be implemented based on ISO/IEC 13863 – 2nd Ed.
1998 and ISO/IEC 13974 – 2nd Ed. 1999.
• Security features
– Encryption to additional Cisco IP Phone 7940 and IP Phone 7960 devices, in addition to the already supported Cisco IP Phone 7970.
– Encryption for MGCP gateways.
– Encryption for SRST.
– HTTPS for secure administration of Cisco CallManager. Supported by the following applications:
– Cisco CallManager Admin