Continuity Testing Call Flow (CCR/COT)
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(Difference between revisions)
(fix format for message call flow) |
Nicole Tan (Talk | contribs) (Adjusted the format of the callflows) |
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| Line 9: | Line 9: | ||
<pre> | <pre> | ||
Peer SP TMG | Peer SP TMG | ||
| − | |||
IAM - - - - - - - - - - -> | IAM - - - - - - - - - - -> | ||
| − | |||
| − | |||
Check tone - - - - - - - - - - -| | Check tone - - - - - - - - - - -| | ||
| − | |||
- - - - - - - - - - | - - - - - - - - - - | ||
| − | |||
REL - - - - - - - - - - -> | REL - - - - - - - - - - -> | ||
| − | |||
< -- - - - - - - - - - RLC | < -- - - - - - - - - - RLC | ||
</pre> | </pre> | ||
| − | |||
For ANSI: | For ANSI: | ||
<pre> | <pre> | ||
Peer SP TMG | Peer SP TMG | ||
| − | |||
CCR - - - - - - - - - - -> | CCR - - - - - - - - - - -> | ||
| − | |||
< -- - - - - - - - - - LPA | < -- - - - - - - - - - LPA | ||
| − | |||
Check tone - - - - - - - - - - -| | Check tone - - - - - - - - - - -| | ||
| − | |||
- - - - - - - - - - | - - - - - - - - - - | ||
| − | |||
REL - - - - - - - - - - -> | REL - - - - - - - - - - -> | ||
| − | |||
< -- - - - - - - - - - RLC | < -- - - - - - - - - - RLC | ||
| − | |||
</pre> | </pre> | ||
| Line 44: | Line 30: | ||
This circuit testing occurs when the forward side (originating side) sets the ‘continuity test required’ field of the ‘nature of connection indicators’ IE into the IAM message. | This circuit testing occurs when the forward side (originating side) sets the ‘continuity test required’ field of the ‘nature of connection indicators’ IE into the IAM message. | ||
| + | <pre> | ||
Peer SP TMG | Peer SP TMG | ||
IAM - - - - - - - - - - -> | IAM - - - - - - - - - - -> | ||
| Line 55: | Line 42: | ||
REL - - - - - - - - - - -> | REL - - - - - - - - - - -> | ||
<- - - - - - - - - - - RLC | <- - - - - - - - - - - RLC | ||
| + | </pre> | ||
== Outgoing COT testing == | == Outgoing COT testing == | ||
| − | + | <pre> | |
Peer SP TMG | Peer SP TMG | ||
< - - - - - - - - - - - CCR | < - - - - - - - - - - - CCR | ||
| Line 64: | Line 52: | ||
< - - - - - - - - - - - REL | < - - - - - - - - - - - REL | ||
RLC -- - - - - - - - - - -> | RLC -- - - - - - - - - - -> | ||
| − | + | </pre> | |
== Configuration == | == Configuration == | ||
*[[Outgoing COT testing|Web Portal v2.7: Outgoing COT testing]] | *[[Outgoing COT testing|Web Portal v2.7: Outgoing COT testing]] | ||
Revision as of 14:06, 24 April 2014
Continuity tests are used to make sure that the SS7 ISUP interface circuit groups (CIC) are aligned with the physical links (E1/T1) properly. Toolpack version 2.7 allows users of the TMG to do ISUP Continuity Testing via 3 methods by CIC Group or individual CIC:
Contents |
Incoming Continuity testing outside a call
This circuit testing occurs when one of the nodes wants to validate a currently idle circuit. It is recommended that the switch first blocks the circuit to prevent calls to use the circuit during the testing.
For ITU:
Peer SP TMG
IAM - - - - - - - - - - ->
Check tone - - - - - - - - - - -|
- - - - - - - - - -
REL - - - - - - - - - - ->
< -- - - - - - - - - - RLC
For ANSI:
Peer SP TMG
CCR - - - - - - - - - - ->
< -- - - - - - - - - - LPA
Check tone - - - - - - - - - - -|
- - - - - - - - - -
REL - - - - - - - - - - ->
< -- - - - - - - - - - RLC
Incoming Continuity testing within a call
This circuit testing occurs when the forward side (originating side) sets the ‘continuity test required’ field of the ‘nature of connection indicators’ IE into the IAM message.
Peer SP TMG
IAM - - - - - - - - - - ->
Check tone - - - - - - - - - - -|
- - - - - - - - - - -
COT (successful) - - - - - - - - -->
<- - - - - - - - - - - ACM
- - - - - - - - - - - Ringing tone
<- - - - - - - - - - - ANM
Connectivity - - - - - - - - - - Connectivity
REL - - - - - - - - - - ->
<- - - - - - - - - - - RLC
Outgoing COT testing
Peer SP TMG
< - - - - - - - - - - - CCR
|- - - - - - - - - - - Check tone
- - - - - - - - - -
< - - - - - - - - - - - REL
RLC -- - - - - - - - - - ->
