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| Chapter 4: Configuring your VOIP | |
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| Ethernet/IP Parameter Definitions (continued) | ||
| Field Name | Values |
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| Diff Serv | Diff Serv PHB | (Per Hop Behavior) values pertain to a differential prioritizing system for IP packets as |
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| Parameter | handled by Diff |
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| fields | description. These descriptions are found in TCP/IP standards RFC2474, RFC2597, and, for present |
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| purposes, in RFC3246, which describes the value 34 (34 decimal; 22 hex) for Assured Forwarding |
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| behavior (default for Call Control PHB) and the value 46 (46 decimal; 2E hexadecimal) for Expedited |
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| Forwarding behavior (default for VOIP Media PHB). Before using values other than these default |
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| values of 34 and 46, consult these standards documents and/or a qualified IP telecommunications |
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| engineer. |
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| To disable Diff Serv, configure both fields to 0 decimal. |
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| Call Control | 0 – 63 |
| Value is used to prioritize call setup IP packets. |
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| PHB | default = 34 |
| Setting this parameter to 0, in conjunction with VOIP Media PHB below will disable |
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| Diff Serv. |
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| VOIP Media | 0 – 63 |
| Value is used to prioritize the RTP/RTCP audio IP packets. |
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| PHB | default = 46 |
| Setting this parameter to 0, in conjunction with Call Control PHB above will disable |
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| Diff Serv. |
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| FTP Parameter fields |
| MultiVOIP unit has an FTP Server function so that firmware and other important |
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| FTP Server | Y/N |
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| Enable | Default = |
| operating software files can be transferred to the VOIP via the network. |
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| disabled |
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| See “FTP |
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| Server File |
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| Transfers” in |
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| Chapter 6 |
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| DNS Parameter fields |
| Enables Domain Name Space/System function where computer names are resolved |
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| Enable DNS | Y/N |
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| Default = |
| using a worldwide distributed database. |
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| disabled |
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| Enable SRV | Y/N |
| Enables ‘service record’ function. Service record is a category of data in the Internet |
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| Domain Name System specifying information on available servers for a specific |
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| protocol and domain, as defined in RFC 2782. Newer internet protocols like SIP, |
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| STUN, H.323, POP3, and XMPP may require SRV support from clients. Client |
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| implementations of older protocols, like LDAP and SMTP, may have been enhanced |
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| in some settings to support SRV. |
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| DNS Server IP | n.n.n.n |
| IP address of specific DNS server to be used to resolve Internet computer names. |
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34 |
