[OpenSIPS-Users] $fU read-only, calling number modification problem

[Maciej Bylica]

Just prompt explaination:
> - no modparams in config
no uac modparams in config.



> - route[0] is responsible for basic routing
> - route[5] is for proper call distribution by using lookup(location)
> information. In the same route i have implemented calling number
> modification.
> Just before the end of route i am arming t_relay with failure route
> (in case of busy for instance).
> - failure_route[105] is to do_routing the call to VM service outside
> the opensips. But just before t_relaying here i need to restore the
> original $fU.
> According to http://www.opensips.org/html/docs/modules/1.6.x/uac.html#id292928
> i should use uac_restore_from() command (with default restore_mode
> modparam).
> Unfortunately the calling number once replaced cannot be restored in my case.
> Below you may find a snippet from debug
>
> Number replacing is generating vsf param
> /sbin/opensips[28268]: DBG:uac:w_replace_from: dsp=0xffd3f38c (len=0)
> , uri=0xffd3f394 (len=29)
> /sbin/opensips[28268]: DBG:uac:replace_uri: removing display ["unknown"]
> /sbin/opensips[28268]: DBG:uac:replace_uri: uri to replace
> [sip:48222114499 at 11.22.33.44]
> /sbin/opensips[28268]: DBG:uac:replace_uri: replacement uri is
> [sip:222114499 at 11.22.33.44]
> /sbin/opensips[28268]: DBG:uac:replace_uri: encode
> is=<AAAAAAIJAgUMBAEAD3AHeQUXBR8FHwUaCRoKHAsyOQ--> len=44
> /sbin/opensips[28268]: DBG:rr:add_rr_param: adding
> (;vsf=AAAAAAIJAgUMBAEAD3AHeQUXBR8FHwUaCRoKHAsyOQ--) 0x81c2828
>
> then opensips constucts Busy message and in the same time without any
> uac_restore_from() command:
> /sbin/opensips[28795]: DBG:uac:restore_uri_reply: removing
> <<sip:222114496 at 11.22.33.44>>
> /sbin/opensips[28795]: DBG:uac:restore_uri_reply: inserting <"unknown"
> <sip:48222114499 at 11.22.33.44>>
>
> then the call failes to failure_route[105] and uac_restore_from() is
> generating following debug
> /sbin/opensips[28797]: DBG:uac:restore_uri: getting 'vsf' Route param
> /sbin/opensips[28797]: DBG:uac:restore_uri: route param 'vsf' not found
> just after that the call is hitting do_routing and t_relay to VM
> server. Of course calling number was not restored to original one.
>
> Could You please point me where the problem is located?
> Just  one more info - calling number modification part of config is
> located in separated route[10] to be used whenever i wish in my
> script.
>
> Thx,
> Maciej.
>
>
>> Bogdan, Stefano,
>>
>> Its working as is should :)
>> Thanks for pointing me to the right function.
>>
>> Maciej.
>>
>> 2010/10/11 Bogdan-Andrei Iancu <bogdan at voice-system.ro>:
>>> To be more precise:
>>>    http://www.opensips.org/html/docs/modules/1.6.x/uac.html#id228582
>>>
>>> Regards,
>>> Bogdan
>>>
>>> Stefano Pisani wrote:
>>>>   Use replace_from :-)
>>>>
>>>> ciao
>>>> s
>>>>
>>>> Il 10/10/2010 19:19, Maciej Bylica ha scritto:
>>>>
>>>>> Hello
>>>>>
>>>>> I have a question regarding $fU pseudo variable.
>>>>> As mentioned at http://www.opensips.org/Resources/DocsCoreVar16 and on
>>>>> the basis of opensips outputs:
>>>>> ERROR:dialplan:dp_trans_fixup: the output PV is read-only!!
>>>>> it clearly means that $fU is read-only.
>>>>>
>>>>> Unfortunately it is quite big problem for me, because what im
>>>>> struggling with is to achieve proper calling number presentation.
>>>>> In my scenario all endpoints located in subscriber table do have full
>>>>> username with country code, so there are for instance:
>>>>> - 48111223344 (48 country code)
>>>>> - 49222334455 (49 country code)
>>>>> - 44333445566 (44 country code)
>>>>> ...
>>>>>
>>>>> If there is a national call inside the 48 country code the calling
>>>>> number should be changed by striping first two digits (48) -
>>>>> 48999887766--->999887766
>>>>> In case of international call, i should add two digits (00) -
>>>>> 49222334455--->0049222334455.
>>>>>
>>>>> I am using diaplan module in this case and following entry gives me
>>>>> the error I mentioned.
>>>>> dp_translate("2", "$fU/$fU");
>>>>>
>>>>> If there are any workaround.
>>>>> Any help would be highly appreaciated.
>>>>>
>>>>> Thanks,
>>>>> Maciej
>>>>>
>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users at lists.opensips.org
>>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at lists.opensips.org
>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>
>>>>
>>>
>>>
>>> --
>>> Bogdan-Andrei Iancu
>>> OpenSIPS Bootcamp
>>> 15 - 19 November 2010, Edison, New Jersey, USA
>>> www.voice-system.ro
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opensips.org
>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>
>>
>