The
The SBC supports up to 20 parameters per SIP header to accommodate enhanced services such as IMS and VoLTE using call flows such as ICS and SRVCC.
Ribbon recommends using the Transparency Profile to configure transparency on the SBC Core for new deployments, as well as applying additional transparency configurations to existing deployments. Do not use IP Signaling Profile flags in these scenarios because the flags will be retired in upcoming releases.
Refer to the SBC SIP Transparency Implementation Guide for additional information.
The
SIP provides a mechanism to represent common header field names in an abbreviated form. This may be useful when messages are too large to be carried on the transport available to it. A compact form may be substituted for the longer form of a header field name at any time without changing the semantics of the message. A header field name may appear in both long and short forms within the same message. A compact form of some common header field names is also defined for use when overall message size is an issue. Any headers marked with an alternate like: ' | ' indicates the long form or the short form of the header.
In order to maintain backward capability, as of 4.1.6R0 and 4.2.4R0 releases, the
The
The SBC can now use the Cause Indicators parameter(CAI) of REL message received in P-N-ISUP-R header of any SIP error message. The CAI is used in the following scenarios:
- The CAI is recorded onto CAM.
- The CAI makes the error response toward ingress side (SIP-T) based on the mapping of “cpcToSipCauseMapProfile”.
- The CAI is triggered by a crankback (“crankbackProfile” refers to the CAI).
Modified: for 10.1.2
SIP Header List
Key: = Supported |
A
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Accept | |||
Accept-Contact|a | |||
Accept-Language | 4.0.0 | ||
Accept-Resource-Priority | |||
Alert-Info | |||
Allow | |||
Also | |||
Anonymity | |||
Authorization |
C
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
CallConnectId | |||
Call-ID|i | |||
Call-Info | |||
Contact|m | |||
Content-Disposition | |||
Content-Type|c | |||
Content-Encoding|e | |||
Content-Length|l | |||
CSeq |
D
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Diversion |
E
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Error-Info | |||
Event|o | |||
Expires |
F
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Feature-Caps | 5.1.0 | ||
Flow-Timer | 4.0.0 | ||
From|f |
G
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Geolocation | |||
Geolocation-Error | |||
Geolocation-Routing |
H
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
History-Info |
I
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Identity | 7.2.0 | ||
Info-Package | 5.1.0 |
M
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Max-Forwards | |||
MIME-Version | |||
Min-Expires | |||
Min-SE |
O
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Overload-Control |
P
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
P-Access-Network-Info | |||
P-Area-Info | |||
P-Asserted-Identity | |||
P-Associated-URI | |||
P-Attestation-Indicator | 7.2.0 | ||
Path | |||
P-Asserted-Service | 5.1.0 | ||
P-Called-Party-ID | |||
P-Carrier-Info | |||
P-CDR-Info | |||
P-Charge-Info | |||
P-Charging-Function-Addresses | |||
P-Charging-Vector | |||
P-ChgMsg-Info | |||
P-Com.Session-Info | 5.1.0 | ||
P-DCS-Billing-Info | 4.0.0 | ||
P-DCS-LAES | |||
P-Early-Media | |||
"P-K-Adn" | |||
P-K-Cfl | |||
P-K-Cfo | |||
P-N-ISUP-R | 10.1.2 Modified: for 10.1.2 | ||
P-Orig-CA | |||
P-Origination-ID | 7.2.0 | ||
P-Preferred-Identity | |||
P-Profile-Key | 5.1.0 | ||
Privacy | |||
Proxy-Authenticate | |||
Proxy-Authorization | |||
Proxy-Require | |||
P-Sig-Info | |||
P-Svc-Info | |||
P-Term-CA | |||
P-Visited-Network-ID |
R
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
RAck | |||
Reason | |||
Record-Route | |||
Recv-Info | 5.1.0 | ||
Referred-By|b | |||
Refer-Sub | 4.0.0 | ||
Refer-To|r | |||
Remote-Party-ID | |||
Replaces | |||
Reply-To | |||
Requested-By | |||
Require | |||
Resource-Priority | |||
Retry-After | |||
Route | |||
RSeq |
S
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Security-Client | |||
Security-Server | |||
Security-Verify | |||
Server | 4.0.0 | ||
Service-Route | |||
Session-Expires|x | |||
Sip-Etag | 4.0.0 | ||
Sip-If-Match | 4.0.0 | ||
Subscription-State | |||
Supported|k | |||
Suppress-If-Match | 4.0.0 |
T
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Target-Dialog | |||
Timestamp | |||
To|t |
U
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
UnSupported | |||
User-Agent | 4.0.0 | ||
User-to-User |
V
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Via|v |
W
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Warning | 4.0.0 | ||
WWW-Authenticate |
X
SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
X-ATP | |||
X-AUT | |||
X-BCI | |||
X-CALLING-NUM | |||
X-Carrier-Info | |||
X-CHGDelay | |||
X-CHGInfo | |||
X-CONTRACT-ADDR | |||
X-EMG | |||
X-FCI | |||
X-FWDORIG-NUM | |||
X-GENERIC-NUM | |||
X-ISUPEvent | |||
X-ISUPMtype | |||
X-MS-MediaPath | 8.2 | ||
X-MS-UserLocation | 8.2 | ||
X-NOCI | |||
X-OBCI | |||
X-ORIGCLD-NUM | |||
X-REDBWDINF | |||
X-REDCAP | |||
X-REDCNT | |||
X-REDFWDINF | |||
X-Service-Indicator | |||
X-Service-Type | |||
X-TMR | |||
X-USI |