Asterisk sip Contact change

Asterisk Asterisk SIP
1

Dear Team,

I have installed asterisk server 13.14.1.

I have configured sip trunk. When am sending the call ,In SIP Header sip header contact is going as Fromuser which is ther in my sip trunk. I need to change the SIP HEADER contact from dial pan instead of taking from the FROMUSER .

Is it possible ? can anyone help on this ?

Below is sip trunk details.

username=77258998@10.66.10.66
fromuser=77258998
type=peer
secret=1234
qualify=yes
outboundproxy=10.66.10.66
nat=yes
insecure=port,invite
host=10.66.10.66
fromdomain=10.66.10.66
disallow=all
allow=alaw
sendrpid=yes

And below is the sip debug

INVITE sip:9999999999@10.66.10.66 SIP/2.0
Via: SIP/2.0/UDP 10.0.66.130:5061;branch=z9hG4bK74626153;rport
Max-Forwards: 70
From: “MyName Here” sip:77258998@10.66.10.66:5061;tag=as3bb397a9
To: sip:10.66.10.66@10.66.10.66
Contact: sip:77258998@10.0.66.130:5061
Call-ID: 288510cf60155b37003947e326255bad@10.66.10.66
CSeq: 102 INVITE
User-Agent: FPBX-13.0.192.8(13.14.1)
Date: Wed, 01 Aug 2018 19:14:49 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Remote-Party-ID: “MyName Here” sip:77258999@10.66.10.66;party=calling;privacy=off;screen=no
Content-Type: application/sdp
Content-Length: 248

In the the givenlog i have set the callerid(num) as 77258999 but still am getting the contact as
77258998 number.
I need to set the contact as 77258999 with out changing the from user.

Can any one help me on this ?

2

Anything that is dependent on the user part of the Contact URI, other than the system that sent it, is broken.

You failed to say that you are using chan_sip, but chan_pjsip sends a completely opaque user part.

You need to fix the peer not to read things into SIP protocol fields that the SIP specification doesn’t associate with those fields.

3

whatever am sending the fromuser string in SIP.conf that only coming as SIP Header Contact…

Is that possible with out changing the From user to change the contact header.

4

If you manually configure the trunk as follows

username=77258998@10.66.10.66
fromuser=77258999

Does it work with calllerid as 77258999? Some carriers do not allow this chnage.

5

As I’ve already said, there is no valid reason for providing such a facility. You need to fix the system that is musing opaque data.

6

yes. 7725899 i staking as caller id .

7

From the operator side they will not change…They will accept whet ever the we are sending as SIP Header contact. Hence need to change the asterisk configurations.

8

Change the operator to one that implements SIP.

You could try moving to PJSIP, as it appears to have some features to work round this sort of broken SIP implementation: PJSIP: Change the user part of the Contact Header