Can NOT recieve calls&sms on linphone-iphone due to Flexisip cache.

[basncy]

iphone version 5.4.0 can NOT recieve any calls&sms from some days ago while success register to linphone server. After changing linphone account password via https://www.linphone.org/freesip?action=change_password , and re-login, it works.

The following action has been taken but still failed:
1.reinstall linphone-iPhone 4.5.0
2.downgrade to 4.4.2
3.reboot iphone.

Should we change linphone account password for a period of time to avoid this happen?

[basncy]

Here is some sample MESSAGE logs from asterisk server side, it seems Flexisip server eat the SIP signal to linphone client.

`<--- Received SIP response (389 bytes) from TLS:54.37.202.229:5223 --->
SIP/2.0 100 Trying
Via: SIP/2.0/TLS 1.2.3.4:5223;rport=41031;branch=z9hG4bKPjadcb7461-802b-4bea-a87b-be79729f9570;alias
From: sip:12345@sip.mydomain.org;tag=e023c744-d2db-4633-bb45-c29844495c2a
To: sip:username@sip.linphone.org
Call-ID: 0ae9e75e-1518-4afd-b237-8fd375dc5d92
CSeq: 54601 MESSAGE
Server: Flexisip/2.0.7-2-ga93725b0 (sofia-sip-nta/2.0)
Content-Length: 0

<--- Received SIP response (335 bytes) from TLS:54.37.202.229:5223 --->
SIP/2.0 202 Accepted
Via: SIP/2.0/TLS 1.2.3.4:5223;rport=41031;branch=z9hG4bKPjadcb7461-802b-4bea-a87b-be79729f9570;alias
From: sip:12345@sip.mydomain.org;tag=e023c744-d2db-4633-bb45-c29844495c2a
To: sip:username@sip.linphone.org
Call-ID: 0ae9e75e-1518-4afd-b237-8fd375dc5d92
CSeq: 54601 MESSAGE
Content-Length: 0
`

And for calling, my sip server ends up with PUSH Send response.

I got this error situation happens once again when I

1. accidentally uninstalled Linphone-Iphone.
2. 12345@sip.mydomain.org place some calls and messages to username@sip.linphone.org
3. days later, I re-installed Linphone-Iphone.
4. username@sip.linphone.org can NOT RECIEVE incoming calls and sms again, even the linphone-iphone says register success, and linphone account outbounding(with or without outbount_proxy) works well.

[basncy]

Seems caused by the SIP signal cache on Flexisip server side.
I login with the same account on linphone-desktop and linphone-android, got lots of messages which I send previously.
and linphone-desktop & linphone -android could receive latest calls&sms while linphone-iphone still can not.