Customer is getting callmanager business edition. Their carrier [Paetec] is providing a 3meg sip trunk to provide internet and voice. It will terminate into a 2851 router.
I've yet to configured sip service, and could use some help.
What is the sip handoff - ethernet?T1?
Do phones need to be sip or can they be sccp?
Is there a good doc showing the ios config?
Any info would be appreciated.
Hi Rob and Marwan (+5 for your good input),
Here's additional information on how some service providers such as Paetec and AT&T are connecting their customers. SIP trunks are increasingly being used in conjunction with a Session Border Controller such as the Cisco Unified Border Element (CUBE) as an alternative to traditional PSTN connections. In your case the 2851 could provide the CUBE functionality. Phones could use whicherver protocol is desired. It shouldn't matter. The CallManager will route the calls out a SIP Trunk.
The CUBE provides a network-to-network interface point for:
* Signaling Interworking (H.323, SIP)
* Media Interworking (DTMF, Fax, Modem and Codec Transcoding)
* Address and Port translations (Privacy and Topology Hiding)
* Billing and CDR Normalization
* QoS and Bandwidth Management (QoS marking using TOS, DSCP and bandwidth enforcement using RSVP and codec filtering)
Here are some sample configurations
Unified Border Element (CUBE) with Cisco Unified Communications Manager (CUCM) Configuration Example
AT&T IP Toll-Free: Connecting Cisco Unified Communications Manager 6.1(1a) via the Cisco Unified Border Element using SIP
AT&T IP FlexReach: Connecting Cisco Unified Communications Manager 6.1(1a) via the Cisco Unified Border Element using SIP
Note that phones can still be SCCP.
Hope this helps.
as u know the well know signaling protocall n gateways is h323 aslo the new and most growing one now is sip
with sip u can use hotsname to send and recieve calls and numbers as well
for ur case u will use ur voice equipment normally, like sccp,h323, and callmanager
only on the gateqay u need to creat dial-peer use sip point to the service provider
the following document relate to callmanager expres but the dial-peers for pstn and sip will be similer and the technology is the same
if helpful Rate