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Maximum Content-Length Supported by Cisco CUBE

Hello All,

Is there a limit on the maximum content-length supported by CUBE for a SIP call? We have two peerings with CUBE with ASR SBCs and when the SIP INVITE with SDP content length is 1233, the call is processed properly and is successful. But, when a SIP INVITE with SDP has a content length of 3168, ASR SBC receives a 100 TRYING from the CUBE and then there is no response, and the call fails.

I know without the SIP logs from the CUBE it is a bit difficult (we are still awaiting SIP logs), but just wanted to know if very long content-length can cause issues and if there is any limit on the maximum supported by CUBE?

The following section from the reference Cisco document does refer to content length, but I'm not sure if this applies as a general rule or is meant only for modifications with SDP

"The maximum SDP header length is 2048 characters. If any header length exceeds

the maximum value after a rule is applied, that rule will be ignored, and the changes are not

applied. If the total SDP length exceeds 2048 characters after modifications, all changes to the

SDP are ignored and not applied."

http://www.cisco.com/image/gif/paws/105624/cube_sip_normalization.pdf

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