Below are tables displaying the SS7 ISUP Parameters and their corresponding SIP Signaling Parameter.
Note: Standard mapping is done based on RFC 3398 and Q.1912.5.
Note: Some of the mapping below occurs automatically and some require some configuration changes to occur.
Area |
SS7 Optional Parameter / Message |
SIP Header / Parameter |
Caller Information |
Calling Party Number |
From Header |
Calling Party's Category |
CPC Parameter in From Header |
|
Call Hold |
Suspend Message |
Re-Invite message with IP address of 0.0.0.0 |
Resume Message |
Re-Invite message with IP address of 0.0.0.0 |
|
Equal Access |
Transit Network Selection |
CIC parameter in R-URI |
Call Forwarding |
Original Called Number |
Diversion header |
Redirection Information |
Diversion header |
|
Redirecting Number |
Diversion header |
|
Privacy |
APRI in Calling Party Number |
Privacy parameter in RP-ID header & P-Asserted-ID header |
LNP |
Generic Number |
rn parameter in R-URI (in case of ported number) |
Called Ported Address |
R-URI (in case of ported number) |
|
Bit M Forward Call Indicator |
NPDI |
|
Release |
Cause Indicator |
SIP Reason header |
Area |
SS7 Optional Parameter / Message |
SIP Header / Parameter |
Caller Information
|
Calling Party Number |
From header |
Calling Party's Category |
CPC parameter in From header |
|
Originating Line Information |
ISUP_OLI parameter |
|
Generic Name |
Display portion of the From, RP-ID, and P-Asserted-ID headers |
|
Call Hold
|
Suspend Message |
Re-Invite Message with IP address of 0.0.0.0 |
Resume Message |
Re-Invite Message with actual IP address |
|
Equal Access |
Carrier Identification |
CIC parameter in R-URI |
Carrier Selection Identification |
DAI parameter in R-URI |
|
Call Forwarding |
Original Called Number |
Diversion header |
Redirection Information |
Diversion header |
|
Redirecting Number |
Diversion header |
|
Charge Number |
Diversion Header -or- P-Charge Info Header depending on whether P-Charge Info is enabled in SIP Headers object. |
|
Privacy |
APRI in Calling Party Number and APRI in Generic Name Parameter |
Privacy parameter in RP-ID header & P-Asserted-ID header |
LNP |
Generic Address |
R-URI (in case of ported number) |
Called Ported Address |
rn parameter in R-URI (in case of ported number) |
|
Release |
Cause Indicator |
SIP Reason header |