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In this section:
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These sections describe the configuration objects used for signaling. The following diagram depicts a basic signaling configuration.
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Diameter Signaling Controls
Use this object to configure global Diameter signaling controls.
Command Syntax
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% set global signaling diamSigControls
addSonusSpecificAVP <disabled | enabled>
defaultCCF <ipAddress>
enableRfApp <disabled | enabled>
generateFailedEventAcr <disabled | enabled>
maxACRretransmission <0-3>
rfInterimAccInrvl <0-180> |
Command Parameters
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Gateway Signaling Timers
This object allows you to configure the signaling timers for the gateway.
Command Syntax
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Gateway Signaling Timers
This object allows you to configure the signaling timers for the gateway.
Command Syntax
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% set global signaling gwSigTimers congRelDelay <delay in seconds> establish <timer value, in seconds> idle <idle time, in hours> keepalive <keepalive time, in seconds> retry <number of minutes to attempt to recover GW signaling link> % show global signaling gwSigTimers % delete |
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global |
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Command Parameters
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Parameter
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Length/Range
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Description
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congRelDelay
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N/A
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signaling gwSigTimers |
Command Parameters
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displaylevel
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1-64
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To display different levels of output information in show commands.
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establish
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N/A
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N/A
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keepalive
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N/A
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The Gateway Signal Channel Keep-alive Timer (in seconds.) This value applies to all signal channels. (default = 3).
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retry
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N/A
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Amount of time (in minutes) the SBC will continue to attempt to recover a GW Signaling Link as long as there are stable calls up. (default = 60).
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displaylevel
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1-64
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To display different levels of output information in show commands.
H.323 Signaling Timers
This object allows you to configure signaling timers for the node.
Command Syntax
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H.323 Signaling Timers
This object allows you to configure signaling timers for the node.
Command Syntax
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% set global signaling h323SigTimers establish <timer value, in seconds> t301 <timer value, in seconds> t302 <timer value, in seconds> t303 <timer value, in seconds> t304 <timer value, in seconds> t310 <T3timer value, in seconds10> tcpConnect <tcpConnect> % show global signaling h323SigTimers |
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% delete global |
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Command Parameters
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Parameter
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Length/Range
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Description
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establish
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0-127
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signaling h323SigTimers |
Command Parameters
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Command Example
To display the global configuration of all h323SigTimers:
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% show global signaling h323SigTimers
establish 33;
tcpConnect 77;
t301 444;
t302 33;
t303 22;
t304 33;
t310 33; |
SIP Peer Overload Control
This object allows you to configure SIP Peer Overload parameters.
Command Syntax
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t302
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0-127
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The T302 call timer (in seconds). Default value is 15 seconds.
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t303
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0-127
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The T303 call timer (in seconds). Default value is 4 seconds.
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t304
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0-127
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The T304 call timer (in seconds). Default value is 20 seconds.
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t310
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0-127
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The T310 call timer (in seconds). Default value is 10 seconds.
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tcpConnect
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0-127
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The TCP connect timer (in seconds). Default value is 3 seconds.
Command Example
To display the global configuration of all h323SigTimers:
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% show global signaling h323SigTimers
establish 33;
tcpConnect 77;
t301 444;
t302 33;
t303 22;
t304 33;
t310 33; |
Signaling Only Mode
The SBC can be configured in a signaling-only mode so that the SBC participates in the exchange of signaling messages that set up a call but does not reserve or allocate any media resources for the session. The media component of the session is handled as direct media between the call participants.
Command Syntax
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% set global signaling sigOnlyMode sigOnlyModeValue <global | off> |
Command Parameters
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Command Example
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% set global signaling sigOnlyMode sigOnlyModeValue global
commit |
SIP Peer Overload Control
This object allows you to configure SIP Peer Overload parameters.
Command Syntax
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% set global signaling sipPeerOverloadControl
discardPeriod <1-10 seconds>
rejectThreshold <0-50>
samplingPeriod <1-10>
stepDownGain <1-200> |
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% show global signaling sipPeerOverloadControl
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% delete global |
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signaling sipPeerOverloadControl |
Command Parameters
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Command Example
To display the global configuration of all SIP overload control:
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% show global signaling sipPeerOverloadControl
samplingPeriod 2;
discardPeriod 1;
stepDownGain 44;
rejectThreshold 33; |
SIP Signaling Controls
Use this object to configure SIP signaling control parameters.
Command Syntax
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% set global signaling sipSigControls egressRemoveEnudmi <disabled | enabled> egressRNParam <disabled | enabled> loopDetectionFeature <disabled | enabled> maxPduSizeValue <pdusize2kb | pdusize3kb | pdusize6kb | pdusize15kb | pdusize32kb | pdusize60kb> multipleContactsPerAor <disabled | enabled> registrarSupportContactParam <disabled | enabled> |
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send503DuringSwitchover <disabled | enabled> |
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sendDeRegisterContactAsStar <disabled | enabled> sendSurrogateUnRegAfterReboot <disabled | enabled> suppressErrorInfoHdr <disabled | enabled> surrogateRegisterPacingTime <0-10000> ucidNodeId <node_id> % |
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show global signaling sipSigControls |
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% delete global signaling sipSigControls |
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Parameters
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N/A
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The egress RN parameter. Specifies whether the
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disabledenabled(default)
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loopDetectionFeature
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N/A
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When enabled, the SIP Stack performs loop detection on incoming INVITE messages.
disabled– The SIP signaling group processes the INVITE message.enabled(default)
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maxPduSizeValue
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N/A
The maximum PDU size recognized by the
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See Multiple Contacts per AoR for additional details.
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registrarSupportContactParam
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N/A
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Enable flag to suppress Error-Info header in a response to a request message with syntax error.
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Use this parameter to specify the time gap, in milliseconds, between a final response of surrogate register and the next surrogate register message sent across all peers. (default = 0, disabled)
If surrogate registration is active and you wish to disable pacing, first disable surrogate registration for all Peers using following command syntax:
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% set addressContext <AC name> zone <zone name> ipPeer <peer name> surrogateRegistration state disabled |
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Please research the feature to fully understand pacing semantics before using it. This setting is not required in generic deployments. Pacing is applied to all surrogate REGISTER requests generated for all surrogate AoRs. |
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ucidNodeId
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1-32767
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UCID Node Id used to generate the UCID in the User-to-User Header. (default = 0)
Command Example
To display the global configuration of all SIP signaling control parameters:
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Command Example
To display the global configuration of all SIP signaling control parameters:
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% show global signaling sipSigControls loopDetectionFeature enabled; registrarSupportContactParam |
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enabled; |
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suppressErrorInfoHdr enabled;
maxPduSizeValue pdusize3kb;
egressRNParam enabled;
multipleContactsPerAor enabled;
surrogateRegisterPacingTime enabled;
ucidNodeId 13;
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Single Radio Voice Call Continuity (SRVCC)
SRVCC provides the ability to transition a voice call from the VoIP/IMS packet domain (LTE) to the legacy circuit domain. Variations of SRVCC are being standardized to support both GSM/UMTS and CDMA 1x circuit domains. For an operator with a legacy cellular network who wishes to deploy IMS/VoIP-based voice services in conjunction with the rollout of an LTE network, SRVCC offers VoIP subscribers with coverage over a much larger area than would typically be available during the roll-out of a new network.
Command Syntax
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% set global signaling srvcc atcfUri |
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(1-63 chars) callLingerTimer |
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(1-32 seconds) eStnSr (1-32 chars) pstopsSti (0-32 chars) |
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stnSr (1-32 chars) |
Command Parameters
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Command Example
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set global signaling srvcc pstopsSti +1-pstopsSti-222
commit
show global signaling srvcc pstopsSti
pstopsSti +1-pstopsSti-222; |
Single Radio Voice Call Continuity
Single Radio Voice Call Continuity (SRVCC) provides the ability to transition a voice call from the VoIP/IMS packet domain (LTE) to the legacy circuit domain. Variations of SRVCC are being standardized to support both GSM/UMTS and CDMA 1x circuit domains. For an operator with a legacy cellular network who wishes to deploy IMS/VoIP-based voice services in conjunction with the rollout of an LTE network, SRVCC offers VoIP subscribers with coverage over a much larger area than would typically be available during the rollout of a new network.
Command Syntax
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% set global signaling srvcc
atcfUri (1-63 chars)
callLingerTimer (1-32 seconds)
eStnSr (1-32 chars)
stnSr (1-32 chars) |
Command Parameters
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Parameter | Length/Range | Description |
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atcfUri | 1-63 characters | SIP URI to be used as the ATCF Path and Management URI. |
callLingerTimer | 1-32 seconds | Number of seconds to wait for INVITE due to STN_SR before clearing the call (default=32). |
eStnSr | 1-32 characters | Request URI for a emergency transfer call sent by MSC on PS to CS call hand-off. |
| 1-32 characters | Request URI for a transfer call sent by MSC on PS to CS call hand-off. |
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