Version 6.6
317
Mediant 3000
User's Manual
21. Digital PSTN
The device stops collecting digits (from the ISDN) upon the following scenarios:
The device receives a Sending Complete IE in the ISDN Setup or Information
messages, indicating no more digits.
The timeout between received digits expires (configured by the TimeBetweenDigits
parameter).
The maximum number of received digits has been reached (configured by the
MaxDigits parameter).
A match is found with the defined digit map (configured by the DigitMapping
parameter).
Relevant parameters (described in 'PSTN Parameters' on page
ISDNRxOverlap_x = 1 (can be configured per trunk)
TimeBetweenDigits
MaxDigits
MuteDTMFInOverlap
DigitMapping
For configuring ISDN overlap dialing using the Web interface, see 'Configuring Trunk
Settings' on page
21.8.2 Interworking ISDN Overlap Dialing with SIP According to RFC
3578
The device supports the interworking of ISDN overlap dialing to SIP and vice versa,
according to RFC 3578.
Interworking ISDN overlap dialing to SIP (Tel to IP):
The device sends collected
digits each time it receives them (initially from the ISDN Setup message and then from
subsequent Q.931 Information messages) to the IP side, using subsequent SIP
INVITE messages. You can also define the minimum number of overlap digits to
collect before sending the first SIP message (INVITE) for routing the call, using the
MinOverlapDigitsForRouting parameter.
Interworking SIP to ISDN overlap dialing (IP to Tel):
For each received SIP INVITE
pertaining to the same dialog session, the device sends an ISDN Setup message (and
subsequent Q.931 Information messages) with the collected digits to the Tel side. For
all subsequent INVITEs received, the device sends a SIP 484 "Address Incomplete"
response to the IP in order to maintain the current dialog session and to receive
additional digits from subsequent INVITEs.
Relevant parameters (described in 'PSTN Parameters' on page
ISDNRxOverlap = 2
ISDNTxOverlap
ISDNOutCallsBehavior = 2
MinOverlapDigitsForRouting
TimeBetweenDigits
MaxDigits
DigitMapping
MuteDTMFInOverlap
For configuring ISDN overlap dialing using the Web interface, see 'Configuring Trunk
Settings' on page
Summary of Contents for Mediant 3000
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Page 27: ...Part I Getting Started with Initial Connectivity...
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Page 41: ...Part II Management Tools...
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Page 103: ...Part III General System Settings...
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Page 113: ...Part IV General VoIP Configuration...
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Page 275: ...Part V Gateway and IP to IP Application...
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Page 399: ...Part VI Session Border Controller Application...
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Page 465: ...Part VII Stand Alone Survivability Application...
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Page 497: ...Part VIII IP Media Capabilities...
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Page 501: ...Part IX High Availability System...
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Page 515: ...Part X Maintenance...
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Page 565: ...Part XI Status Performance Monitoring and Reporting...
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Page 609: ...Part XII Diagnostics...
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Page 639: ...Part XIII Appendix...
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Page 871: ...Version 6 6 871 Mediant 3000 User s Manual 55 Selected Technical Specifications Reader s Notes...