![3Com VCX V7111 User Manual Download Page 266](http://html1.mh-extra.com/html/3com/vcx-v7111/vcx-v7111_user-manual_440852266.webp)
266
3Com
®
VCX V7111 VoIP Gateway User Guide
separately quantified and compared to a certain (configurable) threshold. If the
calculated amounts (of delay or packet loss) exceed these thresholds the IP connection
is disallowed.
DNS resolution:
When host name is used (instead of IP address) for the destination
route, it is resolved to an IP address by a DNS server. Connectivity and QoS are then
applied to the resolved IP address.
Relevant Parameters
The following parameters (described in
Table 31
) are used to configure the Alternative
Routing mechanism:
AltRoutingTel2IPEnable
AltRoutingTel2IPMode
IPConnQoSMaxAllowedPL
IPConnQoSMaxAllowedDelay
Mapping PSTN Release Cause to SIP Response
The V7111 FXO gateway is used to interoperate between the SIP network and the
PSTN/PBX. This interoperability includes the mapping of PSTN/PBX Call Progress Tones to
SIP 4xx or 5xx responses for IP
Æ
Tel calls. The converse is also true: For Tel
Æ
IP calls, the
SIP 4xx or 5xx responses are mapped to tones played to the PSTN/PBX.
When establishing an IP
Æ
Tel call the following rules are applied:
If the remote party (PSTN/PBX) is busy and the FXO gateway detects a Busy tone, it sends
486 busy to IP. If it detects a Reorder tone, it sends 404 not found (no route to destination) to
IP. In both cases the call is released. Note that if DisconnectOnBusyTone = 0 the FXO
gateway ignores the detection of Busy/Reorder tones and does not release the call.
For all other V7111 FXS/FXO release types (caused when there are no free channels in the
specific hunt group, or when an appropriate rule for routing the call to a hunt group does not
exist, or if the phone number is not found), the V7111 sends SIP response (to IP) according
to the parameter DefaultReleaseCause. This parameter defines Q.931 release causes. Its
default value is 3, which is mapped to SIP 404 response. By changing its value to 34 SIP
503 response is sent. Other causes can be used as well.
Call Detail Record
The Call Detail Report (CDR) contains vital statistic information on calls made by the
gateway. CDRs are generated at the end and (optionally) at the beginning of each call
(determined by the parameter
CDRReportLeve
l) and sent to a Syslog server. The destination
IP address for CDR logs is determined by the parameter CDRSyslogServerIP.
Table 81
lists the CDR fields that are supported.
Summary of Contents for VCX V7111
Page 30: ...30 3Com VCX V7111 VoIP Gateway User Guide Readers Notes ...
Page 44: ...44 3Com VCX V7111 VoIP Gateway User Guide Readers Notes ...
Page 53: ...3Com VCX V7111 VoIP Gateway User Guide 53 Readers Notes ...
Page 54: ...54 3Com VCX V7111 VoIP Gateway User Guide ...
Page 211: ...3Com VCX V7111 VoIP Gateway User Guide 211 Figure 76 IP Connectivity Screen ...
Page 235: ...3Com VCX V7111 VoIP Gateway User Guide 235 Readers Notes ...
Page 236: ...236 3Com VCX V7111 VoIP Gateway User Guide ...
Page 240: ...240 3Com VCX V7111 VoIP Gateway User Guide Readers Notes ...
Page 245: ...3Com VCX V7111 VoIP Gateway User Guide 245 Readers Notes ...
Page 246: ...246 3Com VCX V7111 VoIP Gateway User Guide ...
Page 281: ...3Com VCX V7111 VoIP Gateway User Guide 281 Readers Notes ...
Page 282: ...282 3Com VCX V7111 VoIP Gateway User Guide ...
Page 298: ...298 3Com VCX V7111 VoIP Gateway User Guide Readers Notes ...
Page 315: ...3Com VCX V7111 VoIP Gateway User Guide 315 Readers Notes ...
Page 316: ...316 3Com VCX V7111 VoIP Gateway User Guide ...
Page 319: ...3Com VCX V7111 VoIP Gateway User Guide 319 Readers Notes ...
Page 320: ...320 3Com VCX V7111 VoIP Gateway User Guide ...
Page 346: ...346 3Com VCX V7111 VoIP Gateway User Guide Readers Notes ...
Page 351: ...3Com VCX V7111 VoIP Gateway User Guide 351 Readers Notes ...
Page 352: ...352 3Com VCX V7111 VoIP Gateway User Guide ...
Page 376: ...376 3Com VCX V7111 VoIP Gateway User Guide Readers Notes ...
Page 386: ...386 3Com VCX V7111 VoIP Gateway User Guide Readers Notes ...
Page 394: ...394 3Com VCX V7111 VoIP Gateway User Guide Readers Notes ...
Page 396: ...396 3Com VCX V7111 VoIP Gateway User Guide Readers Notes ...
Page 405: ...3Com VCX V7111 VoIP Gateway User Guide 405 Reader s Notes ...
Page 406: ...406 3Com VCX V7111 VoIP Gateway User Guide ...
Page 410: ...410 3Com VCX V7111 VoIP Gateway User Guide ...
Page 426: ...426 3Com VCX V7111 VoIP Gateway User Guide Readers Notes ...
Page 432: ...432 3Com VCX V7111 VoIP Gateway User Guide Figure 153 Prerecorded Tones Screen ...
Page 452: ...452 3Com VCX V7111 VoIP Gateway User Guide Readers Notes ...
Page 456: ...456 3Com VCX V7111 VoIP Gateway User Guide Readers Notes ...