Hello,

if you just need to remove first 3 digits, use:

strip(3);

If the number of digits to strip is variables, use strip transformation:

- http://www.kamailio.org/wiki/cookbooks/4.0.x/transformations#sstrip_len

If does not work for you giving errors, paste here what you have in the config for that part.

Cheers,
Daniel

On 4/3/13 7:54 PM, julian arsanches wrote:
Hi am new to kamilio , but able to make calls, i need to do something really simple if someone can give me an example of it i will be gratefull.

just before the call gets relayed i need to delete a prefix from the sip uri so it gets transformed to the same uir but less 3 digits.

for example sip:123xxx@domain.com  >>> changed to sip:xxxx@dmain.com

i tryed with transformations but still too new and does give me so many errors that kamailio don't start,

tryed subs_uri  but i dont know how to tell it to just take the first tree digits, it is usually done for adding prefixes.

please help.

thank you in advance.

on my scenario i am having an asterisk that i dont control sending me   an invite for with a prefix i need kamailio to forward that uri to another server minus the prefix.

thank you.


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