[Users] (PR)ACK problem with uac_replace_from

[Bogdan-Andrei Iancu]

Hi Jeff,

it looks like the Cisco-SIPGateway/IOS-12.x is a bit broken....

Here is the RR hdr added by OpenSER (in INVITE):
   Record-Route: 
<sip:202.74.164.44;lr=on;ftag=1790577941;nat=yes;vsf=AAAAAAYJCQIKCQkACXAwAQYIFkAWRxMAA2UuY29tO3VzZXI9cGhvbmU->

and here is what CISCO mirrors (in 180 reply):
    Record-Route: 
<sip:202.74.164.44;lr=on;ftag=1790577941;nat=yes;vsf=aaaaaayjcqikcqkacxawaqyifkawrxmaa2uuy29to3vzzxi9cghvbmu->

as you can see, the CISCO does not properly mirror the parameters as 
received (as the RFC says) and converts to lower case.
As the vsf is a B64 encoding, it is case sensitive and it gets broken .....

try to upgrade the firmware or submit a bug at CISCO.

regards,
bogdan

Jeff Williams wrote:

>I seem to have an issue with uac_replace_from.
>
>I am using openser as a media proxy. For invites I replace the numbers
>with leading 0's with 61 for Australia and forward the call to our LCR
>box which then forwards the call to the correct voice to pstn gateway. I
>am trying to use uac_replace_from to set the from address so the
>callerid appears correct on the outgoing calls.
>
>This seems to work fine for the INVITE request, but on subsequent PRACKs
>and ACKs (which just get loose routed), something strange happens to the
>from address.
>
>On invite, the From get re-written:
>
>From: Jeff <sip:610089001 at proxy.sipone.com;user=phone>;tag=1790577941
>to
>From: Jeff <sip:0892209080 at sipone.com>;tag=1790577941
>
>For the PRACKs and ACKs, this happens:
>
>From: Jeff <sip:610089001 at proxy.sipone.com;user=phone>;tag=1790577941
>to
>From: Jeff
><\032\317\352S\232\222B\230\234K\231*BV\300\030\303\332\ah\303\306i\365\005\016\200\250\000\000\230\016\200\252j\200\002`\000\000\016>;tag=1790577
>941
>
>There shouldn't be anything happening to the From address on the
>(PR)ACKs at all.
>
>Anyone have any ideas?
>
>I have attached a ethereal dump of the call setup.
>
>Jeff
>  
>
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