Cisco Catalyst 3000, Руководство администратора

Страница: 48 / 496

• Raw DTMF
• RSVP
Cisco Business Edition 3000 does not support the following functionalities on SIP trunk:
• pTime - This media-based parameter cannot be configured on Cisco Business Edition 3000. However,
a fixed value will be used.
• DTMF - The PSTN calls with SIP trunk connection encountering DTMF incompatibility requires an
MTP to normalize the DTMF. As Cisco Business Edition 3000 does not support MTP, the call fails.
• Early media on 180 - For SIP trunk connections, Cisco Business Edition 3000 signals calling phone to
play local ringback as it does not receive SDP in the 180 response. However, the system receives as
SDP in the 183 response.
E1 R2 Connections
R2 signaling is a Channel Associated Signaling (CAS) system developed in the 1960s that is still in use today
in Europe, Latin America, Australia, and Asia. R2 signaling exists in several country versions or variants in
an international version called Consultative Committee for International Telegraph and Telephone (CCITT-R2).
The E1 R2 signaling is an international signaling standard that is common to channelized E1 networks.
In the Cisco Business Edition 3000, R2 signaling serves as a connection to the E1 interface for PSTN
connectivity. This connection is achieved by the installation of the country packs, and adding the E1 R2
connection through Cisco Business Edition 3000 Administrative Interface.
You can set up the E1 R2 connection only if you have installed the Brazil, Mexico, or Saudi Arabia country
pack. The parameters of the E1 R2 interface may vary from one country to another and may also vary from
one service provider to another. You must install the country pack during First Time Setup (FTS) or at a later
stage import the COP file before you choose the provider for an E1 R2 PSTN connection.
To add, edit, or delete E1 R2 connections, sign in to Cisco Business Edition 3000 Administrative Interface
(
Connections > PSTN Connections ).
Connection Pack
The provisioning of SIP trunks to SBE from Cisco Business Edition 3000 is supported through the installation
of connection packs. The connection pack is a Cisco Options Package (COP) file signed by Cisco. The main
advantage of using the connection pack is that it allows quick and easy configuration of the SIP Trunk with
minimal or no errors.
The connection pack is bundled with the Provider XML file, and Logical Unit Application (LUA) scripts
necessary for the operation of SIP Trunks.
• Provider XML - A configuration file detailing the connection definition for a particular SIP trunk on
the Cisco Business Edition 3000.
The provider XML file controls the default values and the display of Administrative Interface elements
for PSTN Connection configurations for provisioning the SIP trunk.
• LUA script - (Optional) A mechanism supports transparency and normalization of SIP messages for
interacting with the service provider.
For the service provider SIP trunk connection, the provider XML is defined and bundled with the connection
pack. The connection pack must be installed before provisioning the service provider SIP trunk.
Administration Guide for Cisco Business Edition 3000, Release 8.6(4)
28 OL-27022-01
Components of the Cisco Business Edition 3000 System