SIP Filter Profile - Header

The SIP Filter Profile created has the filter settings of all the headers set to Disabled by default. To change the filter setting of the chosen headers to Enabled, navigate to All > Profiles > Signaling > SIP Filter Profile > Header.

Select a SIP Filter Profile from the SIP Filter Profile drop-down list. Select Disabled/Enabled for the headers. For example, to enable filtering for the Also header, select Enabled adjacent to the header name.

Enable Header Transparency

To save the changes, click Save. To cancel all changes made since the last saved state, click Undo Edits.

If SIP Filter Profile is used for Allow, Require and Supported headers, then their transparency cannot be achieved using SIP Param Filter Profile.

The parameters are described below:

SIP Filter Profile - Header - Parameters

Parameter Description

Header

The name of the header under a SIP Filter Profile. For a list of permissible headers, see Permissible SIP Headers.

To enable filtering for a header, configure the setting to Enabled.

Disabled (default)
Enabled

If a header is known and the filter setting for the header is set to Disabled (default), the header is parsed by the SBC. In case of any parsing error, the SBC terminates a call. However, if the filter setting for a known header is set to Enabled, the SBC does not parses the header, even if parsing for the header is supported by the SBC. Additionally, all known filtered headers and unknown headers can be transparently relayed without parsing, if the unknown header transparency is Enabled in IP signaling profile..

Permissible SIP Headers

The mandatory headers which are not part of the SIP Filter Profile are as follows:

From
To
Via
Call-id
Cseq
Max-Forwards

CAUTION: Avoid filtering headers pertaining to SIP call routing/protocol processing, as it may cause unexpected results such as call failures. Some of the headers that should not be filtered are as follows:

Contact
RSeq
RAck
Record-Route
Route
Content-Type
Content-Length
WWW-Authenticate

The details of the existing header names whose filter settings are configurable by SIP Filter Profile, are as follows:

SIP headers whose transparency is configurable by SIP Filter Profile

Header	Length/Range	Default Value	Description
`Overload-Control`	`Disabled/Enabled`	`Disabled`	The header `Overload-Control` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-K-Cfl`	`Disabled/Enabled`	`Disabled`	The header `P-K-Cfl` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-K-Cfo`	`Disabled/Enabled`	`Disabled`	The header `P-K-Cfo` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`RAck`	`Disabled/Enabled`	`Disabled`	The header `RAck` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`RSeq`	`Disabled/Enabled`	`Disabled`	The header `RSeq` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`WWW-Authenticate`	`Disabled/Enabled`	`Disabled`	The header `WWW-Authenticate` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Accept-Contact`	`Disabled/Enabled`	`Disabled`	The header `Accept-Contact` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Accept-Language`	`Disabled/Enabled`	`Disabled`	The header `Accept-Language` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Accept-Resource-Priority`	`Disabled/Enabled`	`Disabled`	The header `Accept-Resource-Priority` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Accept`	`Disabled/Enabled`	`Disabled`	The header `Accept` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Alert-Info`	`Disabled/Enabled`	`Disabled`	The header `Alert-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Allow`	`Disabled/Enabled`	`Disabled`	The header `Allow` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Also`	`Disabled/Enabled`	`Disabled`	The header `Also` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Anonymity`	`Disabled/Enabled`	`Disabled`	The header `Anonymity` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Authorization`	`Disabled/Enabled`	`Disabled`	The header `Authorization` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Call-Connect-Id`	`Disabled/Enabled`	`Disabled`	The header `Call-Connect-Id` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Call-Info`	`Disabled/Enabled`	`Disabled`	The header `Call-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Contact`	`Disabled/Enabled`	`Disabled`	The header `Contact` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Content-Length`	`Disabled/Enabled`	`Disabled`	The header `Content-Length` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Content-Type`	`Disabled/Enabled`	`Disabled`	The header `Content-Type` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Diversion`	`Disabled/Enabled`	`Disabled`	The header `Diversion` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Error-Info`	`Disabled/Enabled`	`Disabled`	The header `Error-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Event`	`Disabled/Enabled`	`Disabled`	The header `Event` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Expires`	`Disabled/Enabled`	`Disabled`	The header `Expires` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Feature-Caps`	`Disabled/Enabled`	`Disabled`	The header `Feature-Caps` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Geolocation-Error`	`Disabled/Enabled`	`Disabled`	The header `Geolocation-Error` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Geolocation-Routing`	`Disabled/Enabled`	`Disabled`	The header `Geolocation-Routing` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Geolocation`	`Disabled/Enabled`	`Disabled`	The header `Geolocation` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`History-Info`	`Disabled/Enabled`	`Disabled`	The header `History-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Info-Package`	`Disabled/Enabled`	`Disabled`	The header `Info-Package` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Min-Expires`	`Disabled/Enabled`	`Disabled`	The header `Min-Expires` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Min-SE`	`Disabled/Enabled`	`Disabled`	The header `Min-SE` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Access-Network-Info`	`Disabled/Enabled`	`Disabled`	The header `P-Access-Network-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Area-Info`	`Disabled/Enabled`	`Disabled`	The header `P-Area-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Asserted-Id`	`Disabled/Enabled`	`Disabled`	The header `P-Asserted-Id` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Asserted-Service`	`Disabled/Enabled`	`Disabled`	The header `P-Asserted-Service` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Associated-URI`	`Disabled/Enabled`	`Disabled`	The header `P-Associated-URI` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Called-Party-Identity`	`Disabled/Enabled`	`Disabled`	The header `P-Called-Party-Identity` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Carrier-Info`	`Disabled/Enabled`	`Disabled`	The header `P-Carrier-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Cdr-Info`	`Disabled/Enabled`	`Disabled`	The header `P-Cdr-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Charge-Info`	`Disabled/Enabled`	`Disabled`	The header `P-Charge-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Charging-Function-Addresses`	`Disabled/Enabled`	`Disabled`	The header `P-Charging-Function-Addresses` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Charging-Vector`	`Disabled/Enabled`	`Disabled`	The header `P-Charging-Vector` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-ChgMsg-Info`	`Disabled/Enabled`	`Disabled`	The header `P-ChgMsg-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-DCS-Billing-Info`	`Disabled/Enabled`	`Disabled`	The header `P-DCS-Billing-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-DCS-LAES`	`Disabled/Enabled`	`Disabled`	The header `P-DCS-LAES` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Early-Media`	`Disabled/Enabled`	`Disabled`	The header `P-Early-Media` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Orig-CA`	`Disabled/Enabled`	`Disabled`	The header `P-Orig-CA` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Preferred-Identity`	`Disabled/Enabled`	`Disabled`	The header `P-Preferred-Identity` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Profile-Key`	`Disabled/Enabled`	`Disabled`	The header `P-Profile-Key` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Sig-Info`	`Disabled/Enabled`	`Disabled`	The header `P-Sig-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Svc-Info`	`Disabled/Enabled`	`Disabled`	The header `P-Svc-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Term-CA`	`Disabled/Enabled`	`Disabled`	The header `P-Term-CA` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`P-Visited-Network-ID`	`Disabled/Enabled`	`Disabled`	The header `P-Visited-Network-ID` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Path`	`Disabled/Enabled`	`Disabled`	The header `Path` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Privacy`	`Disabled/Enabled`	`Disabled`	The header `Privacy` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Proxy-Authenticate`	`Disabled/Enabled`	`Disabled`	The header `Proxy-Authenticate` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Proxy-Authorization`	`Disabled/Enabled`	`Disabled`	The header `Proxy-Authorization` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Proxy-Require`	`Disabled/Enabled`	`Disabled`	The header `Proxy-Require` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Reason`	`Disabled/Enabled`	`Disabled`	The header `Reason` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Record-Route`	`Disabled/Enabled`	`Disabled`	The header `Record-Route` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Recv-Info`	`Disabled/Enabled`	`Disabled`	The header `Recv-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Refer-Sub`	`Disabled/Enabled`	`Disabled`	The header `Refer-Sub` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Refer-To`	`Disabled/Enabled`	`Disabled`	The header `Refer-To` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Referred-By`	`Disabled/Enabled`	`Disabled`	The header `Referred-By` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Remote-Party-Id`	`Disabled/Enabled`	`Disabled`	The header `Remote-Party-Id` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Replace`	`Disabled/Enabled`	`Disabled`	The header `Replace` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Reply-To`	`Disabled/Enabled`	`Disabled`	The header `Reply-To` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Requested-By`	`Disabled/Enabled`	`Disabled`	The header `Requested-By` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Require`	`Disabled/Enabled`	`Disabled`	The header `Require` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Resource-Priority`	`Disabled/Enabled`	`Disabled`	The header `Resource-Priority` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Retry-After`	`Disabled/Enabled`	`Disabled`	The header `Retry-After` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Route`	`Disabled/Enabled`	`Disabled`	The header `Route` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Security-Client`	`Disabled/Enabled`	`Disabled`	The header `Security-Client` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Security-Server`	`Disabled/Enabled`	`Disabled`	The header `Security-Server` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Security-Verify`	`Disabled/Enabled`	`Disabled`	The header `Security-Verify` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Server`	`Disabled/Enabled`	`Disabled`	The header `Server` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Service-Route`	`Disabled/Enabled`	`Disabled`	The header `Service-Route` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Session-Expires`	`Disabled/Enabled`	`Disabled`	The header `Session-Expires` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Sip-Etag`	`Disabled/Enabled`	`Disabled`	The header `Sip-Etag` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Sip-If-Match`	`Disabled/Enabled`	`Disabled`	The header `Sip-If-Match` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Subscription-State`	`Disabled/Enabled`	`Disabled`	The header `Subscription-State` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Supported`	`Disabled/Enabled`	`Disabled`	The header `Supported` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Suppress-If-Match`	`Disabled/Enabled`	`Disabled`	The header `Suppress-If-Match` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Target-Dialog`	`Disabled/Enabled`	`Disabled`	The header `Target-Dialog` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`TimeStamp`	`Disabled/Enabled`	`Disabled`	The header `TimeStamp` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`User-Agent`	`Disabled/Enabled`	`Disabled`	The header `User-Agent` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`User-To-User`	`Disabled/Enabled`	`Disabled`	The header `User-To-User` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`Warning`	`Disabled/Enabled`	`Disabled`	The header `Warning` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-ATP`	`Disabled/Enabled`	`Disabled`	The header `X-ATP` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-AUT`	`Disabled/Enabled`	`Disabled`	The header `X-AUT` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-BCI`	`Disabled/Enabled`	`Disabled`	The header `X-BCI` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-CHGDelay`	`Disabled/Enabled`	`Disabled`	The header `X-CHGDelay` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-CHGInfo`	`Disabled/Enabled`	`Disabled`	The header `X-CHGInfo` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-Calling-Num`	`Disabled/Enabled`	`Disabled`	The header `X-Calling-Num` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-Carrier-Info`	`Disabled/Enabled`	`Disabled`	The header `X-Carrier-Info` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-Contract-Addr`	`Disabled/Enabled`	`Disabled`	The header `X-Contract-Addr` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-EMG`	`Disabled/Enabled`	`Disabled`	The header `X-EMG` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-FCI`	`Disabled/Enabled`	`Disabled`	The header `X-FCI` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-FWDORIG-NUM`	`Disabled/Enabled`	`Disabled`	The header `X-FWDORIG-NUM` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-GENERIC-NUM`	`Disabled/Enabled`	`Disabled`	The header `X-GENERIC-NUM` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-ISUPMtype`	`Disabled/Enabled`	`Disabled`	The header `X-ISUPMtype` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-ISUPEvent`	`Disabled/Enabled`	`Disabled`	The header `X-ISUPEvent` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-NOCI`	`Disabled/Enabled`	`Disabled`	The header `X-NOCI` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-OBCI`	`Disabled/Enabled`	`Disabled`	The header `X-OBCI` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-ORIGCLD-NUM`	`Disabled/Enabled`	`Disabled`	The header `X-ORIGCLD-NUM` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-REDBWDINF`	`Disabled/Enabled`	`Disabled`	The header `X-REDBWDINF` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-REDCAP`	`Disabled/Enabled`	`Disabled`	The header `X-REDCAP` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-REDFWDINF`	`Disabled/Enabled`	`Disabled`	The header `X-REDFWDINF` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-REDCNT`	`Disabled/Enabled`	`Disabled`	The header `X-REDCNT` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-Service-Indicator`	`Disabled/Enabled`	`Disabled`	The header `X-Service-Indicator` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-Service-Type`	`Disabled/Enabled`	`Disabled`	The header `X-Service-Type` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-TMR`	`Disabled/Enabled`	`Disabled`	The header `X-TMR` is not parsed by the SBC when the transparency setting is set to `Enabled`.
`X-USI`	`Disabled/Enabled`	`Disabled`	The header `X-USI` is not parsed by the SBC when the transparency setting is set to `Enabled`.

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Permissible SIP Headers