T.38 Fax Support on Cisco UBE for IPv6
Finding Feature Information
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Information About T.38 Fax Support on Cisco UBE for IPv6
Cisco Unified Border Element in VoIPv6
The Cisco Unified Border Element (UBE) feature adds IPv6 capability to existing VoIP features. This feature adds dual-stack support on voice gateways and MTP, IPv6 support for SIP trunks, and support for SCCP-controlled analog voice gateways. Real-time control protocol (RTCP) pass-through and T.38 fax over IPv6 have also been added to Cisco UBE.
How to Configure T.38 Fax Support on Cisco UBE for IPv6
Configuring IPv6 Support for Cisco UBE
Perform this task to configure IPv6 support for Cisco UBE.
Note |
In Cisco UBE, IPv4-only and IPv6-only modes are not supported when endpoints are dual-stack. In this case, Cisco UBE must also be configured in dual-stack mode. > |
SUMMARY STEPS
- enable
- configure terminal
- sip-ua
- protocol mode {ipv4 | ipv6 | dual-stack preference {ipv4 | ipv6 }}
- end
DETAILED STEPS
Command or Action | Purpose | |
---|---|---|
Step 1 |
enable Example:
|
Enables privileged EXEC mode.
|
Step 2 |
configure terminal Example:
|
Enters global configuration mode. |
Step 3 |
sip-ua Example:
|
Enters SIP user-agent configuration mode. |
Step 4 |
protocol mode {ipv4 | ipv6 | dual-stack preference {ipv4 | ipv6 }} Example:
|
Configures the Cisco IOS SIP stack.
|
Step 5 |
end Example:
|
Exits SIP user-agent configuration mode. |
Configuring T.38 Fax Globally
SUMMARY STEPS
- enable
- configure terminal
- voice service voip
- no ip address trusted authenticate
- allow-connections {h323 | sip } to {h323 | sip }
- fax protocol t38 [nse [force ]] [version {0 | 3 }] [ls-redundancy value [hs-redundancy value ]] [fallback {cisco | none | pass-through {g711ulaw | g711alaw }}]
- sip
- bind control source-interface type number
- bind media source-interface type number
- no anat
- end
DETAILED STEPS
Command or Action | Purpose | |
---|---|---|
Step 1 |
enable Example:
|
Enables privileged EXEC mode.
|
Step 2 |
configure terminal Example:
|
Enters global configuration mode. |
Step 3 |
voice service voip Example:
|
Enters voice service configuration mode. |
Step 4 |
no ip address trusted authenticate Example:
|
Disables the IP address trusted authentication feature for incoming H.323 or SIP trunk calls for toll-fraud prevention. |
Step 5 |
allow-connections {h323 | sip } to {h323 | sip } Example:
|
Allows connections between specific types of endpoints in a VoIP network. |
Step 6 |
fax protocol t38 [nse [force ]] [version {0 | 3 }] [ls-redundancy value [hs-redundancy value ]] [fallback {cisco | none | pass-through {g711ulaw | g711alaw }}] Example:
|
Specifies the global default ITU-T T.38 standard fax protocol to be used for all VoIP dial peers. |
Step 7 |
sip Example:
|
Enters SIP configuration mode. |
Step 8 |
bind control source-interface type number Example:
|
Binds Session Initiation Protocol (SIP) signaling packets and specifies an interface as the source address of SIP packets. |
Step 9 |
bind media source-interface type number Example:
|
Binds only media packets to the IPv4 or IPv6 address of a specific interface and specifies an interface as the source address of SIP packets. |
Step 10 |
no anat Example:
|
Enables Alternative Network Address Types (ANAT) on a SIP trunk. |
Step 11 |
end Example:
|
Exits SIP configuration mode and returns to the privileged EXEC mode. |
Configuration Examples for T.38 Fax Support on Cisco UBE for IPv6
Example: Verifying T.38 Fax Configuration
Router# debug ccsip all
Received:
INVITE sip:5555555555@[2001:DB8:1:1:1:1:1:1118]:5060 SIP/2.0
Via: SIP/2.0/UDP [2001:DB8:1:1:1:1:1:1115]:5060;branch=z9hG4bK83AE3
Remote-Party-ID: <sip:2222222222@[2001:DB8:1:1:1:1:1:1115]>;party=calling;screen=no;privacy=off
From: <sip:2222222222@[2001:DB8:1:1:1:1:1:1115]>;tag=627460F0-1259
To: <sip:5555555555@[2001:DB8:1:1:1:1:1:1118]>
Date: Tue, 01 Mar 2011 08:49:48 GMT
Call-ID: B30FCDEB-431711E0-8EDECB51-E9F6B1F1@2001:DB8:1:1:1:1:1:1115
Supported: 100rel,timer,resource-priority,replaces
Require: sdp-anat
Min-SE: 1800
Cisco-Guid: 2948477781-1125585376-2396638033-3925258737
User-Agent: Cisco-SIPGateway/IOS-15.1(3.14.2)PIA16
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
CSeq: 101 INVITE
Max-Forwards: 70
Timestamp: 1298969388
Contact: <sip:2222222222@[22001:DB8:1:1:1:1:1:1115]:5060>
Expires: 180
Allow-Events: telephone-event
Content-Type: application/sdp
Content-Disposition: session;handling=required
Content-Length: 495
v=0
o=CiscoSystemsSIP-GW-UserAgent 7880 7375 IN IP6 2001:DB8:1:1:1:1:1:1115
s=SIP Call
c=IN IP6 2001:DB8:1:1:1:1:1:1115
t=0 0
a=group:ANAT 1 2
m=audio 17836 RTP/AVP 0 101 19
c=IN IP6 2001:DB8:1:1:1:1:1:1115
a=mid:1
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=rtpmap:19 CN/8000
a=ptime:20
m=audio 18938 RTP/AVP 0 101 19
c=IN IP4 9.45.36.111
a=mid:2
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=rtpmap:19 CN/8000
a=ptime:20
"Received:
INVITE sip:2222222222@[2001:DB8:1:1:1:1:1:1117]:5060 SIP/2.0
Via: SIP/2.0/UDP [2001:DB8:1:1:1:1:1:1116]:5060;branch=z9hG4bK38ACE
Remote-Party-ID: <sip:5555555555@[2001:DB8:1:1:1:1:1:1116]>;party=calling;screen=no;privacy=off
From: <sip:5555555555@[2001:DB8:1:1:1:1:1:1116]>;tag=4FE8C9C-1630
To: <sip:2222222222@[2001:DB8:1:1:1:1:1:1117]>;tag=1001045C-992
Date: Thu, 10 Feb 2011 12:15:08 GMT
Call-ID: 5DEDB77E-ADC11208-808BE770-8FCACF34@2001:DB8:1:1:1:1:1:1117
Supported: 100rel,timer,resource-priority,replaces,sdp-anat
Min-SE: 1800
Cisco-Guid: 1432849350-0876876256-2424621905-3925258737
User-Agent: Cisco-SIPGateway/IOS-15.1(3.14.2)PIA16
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
CSeq: 101 INVITE
Max-Forwards: 70
Timestamp: 1297340108
Contact: <sip:5555555555@[2001:DB8:1:1:1:1:1:1116]:5060>
Expires: 180
Allow-Events: telephone-event
Content-Type: application/sdp
Content-Length: 424
v=0
o=CiscoSystemsSIP-GW-UserAgent 8002 7261 IN IP6 2001:DB8:1:1:1:1:1:1116
s=SIP Call
c=IN IP6 2001:DB8:1:1:1:1:1:1116
t=0 0
m=image 17278 udptl t38
c=IN IP6 2001:DB8:1:1:1:1:1:1116
a=T38FaxVersion:0
a=T38MaxBitRate:14400
a=T38FaxFillBitRemoval:0
a=T38FaxTranscodingMMR:0
a=T38FaxTranscodingJBIG:0
a=T38FaxRateManagement:transferredTCF
a=T38FaxMaxBuffer:200
a=T38FaxMaxDatagram:320
a=T38FaxUdpEC:t38UDPRedundancy"
Additional References
Related Documents
Related Topic |
Document Title |
---|---|
IPv6 addressing and connectivity |
IPv6 Configuration Guide |
Cisco IOS commands |
|
Cisco IOS IPv6 commands |
|
Cisco IOS IPv6 features |
Standards and RFCs
Standard/RFC |
Title |
---|---|
RFCs for IPv6 |
IPv6 RFCs |
Technical Assistance
Description |
Link |
---|---|
The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password. |
Feature Information for T.38 Fax Support on Cisco UBE for IPv6
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Feature Name |
Releases |
Feature Information |
---|---|---|
T.38 Fax Support on Cisco UBE for IPv6 |
15.2(1)T |
IPv6 supports this feature. |