Dear list,

i'm asking here a question about Kamailio config.

We are testing a wide area configuration of Kamailio over separates
countries and we are still facing with an issue.

We configured Kamailio 4.3.5 with dialog support over the TM modules and
we use LCR module for menage ours LCRs rule set profiles.

For some technicals reasons we use tech prefix for our customer so for
exaples customer1 send traffic to us with 1111 prefix, customer2 send
traffic to us with 2222 and something similar..

Our supplier, of course, are using tech prefix too so for examples if i
want to send the call to supplier1 i need to use tech prefix 1789 or
something similar..

The point is..


When customer1 is sending an invite to us.. it send us something like
(Bangladesh mobile 8801xxx)

INVITE sip:11118801xxxxxxx@aaa.bbb.ccc.ddd

Our Kamailio will reply with the Trying and then it goes to LCR module
and match our supplier1 so it make a new invite like this

INVITE sip:17898801xxxxxx@supplier.ip

The problem come when supplier1 reply to us and we replies back to
customer1..

Customer1 view the From: field with the 17898801xxxxxx numbers.. and
some of our customers don't like it.

We don't use anymore the topoh module becuase we found some troubles
using it.. so..

Is there a way that we can use for fix this situation ?


Best regards.



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