Converting Hex to String on Dial-peer Level for SIP Parameters

[Senthil Kumar Sankar]

Hi All,

Is there any command in the Voice Gateway to accomplish the below task.

When the Call hits in the CUBE and when matches the Incoming Dial-Peer and we see the below UUI header information in the SIP INVITE

User-to-User: 30303931323436;encoding=hex

When the call goes out thru the Outbound Dial-peer, is there a way i can convert this back to String.

Have anyone tried this via Sip Normalization. Can someone give me a clue.

Regards,

Senthil

[paolo bevilacqua]

That cannot be done, because standard dictates no other encoding option than 'hex'.

http://tools.ietf.org/html/draft-ietf-cuss-sip-uui-04

http://tools.ietf.org/html/draft-ietf-cuss-sip-uui-isdn-04

[Senthil Kumar Sankar]

Hi Paolo,

Thanks for the information. I have referred this RFC. But is there any other way i can accomplish this.

I would be sending this info to a Contact Centre Environment(CVP Component or a Cisco Sip Proxy Server).

Regards,

Senthil

[paolo bevilacqua]

And what is that you want to accomplish ?

[Senthil Kumar Sankar]

When the SIP Invite passes to the next hop, the value should be converted from

User-to-User: 30303931323436;encoding=hex

to

User-to-User: 091246

Regards,

Senthil

[paolo bevilacqua]

As answered above already:

per draft standard, that is not allowed.

You can read the standard  youself:

 If the "encoding" parameter is not present, "hex" MUST be assumed.