Nortel Networks ConfidentialOverview 9
Protocols
The SIP Application Module uses various protocols to support SIP clients, including the Management Module, RTP Media Portal, Database Module, and the PSTN Gateways. The protocols use an IP backbone to connect the components. These interfaces are shown in Figure 3, “Network interfaces.”
Figure 4 Protocols
SQL | DTP | SIP |
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OMI | Private network |
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PCP |
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SIP |
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| MGCP+ | PSTN |
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SIP | SIP | SIP | SIP |
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| Public network |
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| SIP | Legend |
| Access |
| Access | |
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Media stream
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