System
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SIP Trunks
To manage costs within an organization, businesses are now considering replacing traditional
PSTN connections with new services deployed by service providers. These services are
typically based on the SIP protocol. Mitel expects to see a proliferation of these services in the
future and SIP Trunking has the ability to support these new network services.
SIP trunks allow the 3300 ICP to connect to the Service Provider through the SIP protocol over
the IP network. (See the diagram below.) The SIP Trunking solution provides basic feature
functionality, billing capability, Emergency Services support, FAX support, and more. See the
descriptions below for more information.
9-1-1
SIP Trunking supports 9-1-1 emergency service. The SIP Service Provider can be chosen as
the outgoing emergency route.CESID information must also be programmed.
DNS Support
Communication between SIP Service Providers and the 3300 ICP can be configured to use
either Fully Qualified Domain Names (FQDN) or IP Addresses.
Billing and SMDR
The Service Provider bills calls based on the peer connection to the 3300 ICP. The 3300 ICP
records are created with a special SMDR tag entered in the SIP Peer Profile form. An SMDR
tag can be enabled for outgoing and incoming calls.
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