Bria SIP software on Iphone and 3CX PBX - disconnect calls

[miro]

Hi,

we have a problem with Bria SIP software on Iphone, when we are making outgoing call after about 30 seconds call is disconnected, in Wireshark we see that our 3CX PBX send BYE SIP messages to both side. When there is incoming call for Bria there is no disconnect calls, issue is only with outgoing call.

Capture from 3CX PBX:


09:30:57.174 [CM503008]: Call(12): Call is terminated
09:30:57.168 [CM503021]: Call(12): ACK is not received
09:30:50.097 Currently active calls - 1: [12]
09:30:38.188 [CM503008]: Call(11): Call is terminated
09:30:38.184 [CM503021]: Call(11): ACK is not received
09:30:25.130 [CM503007]: Call(12): Device joined: sip:[email protected]:5070;transport=udp;user=phone
09:30:25.128 [CM503007]: Call(12): Device joined: sip:[email protected]:52690;transport=tcp
09:30:25.125 [MS210005] C:12.1:Answer provided. Connection(proxy mode):89.201.x.x:9004(9005)
09:30:25.125 [MS210001] C:12.2:Answer received. RTP connection[unsecure]: 192.168.3.237:5082(5083)
09:30:25.122 Remote SDP is set for legC:12.2
09:30:23.678 [CM505001]: Ext.510: Device info: Device Identified: [Man: Grandstream;Mod: GXP Series;Rev: General] Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [Grandstream GXP2000 1.2.5.3] PBX contact: [sip:[email protected]:5060]
09:30:23.678 [CM503002]: Call(12): Alerting sip:[email protected]:5070;transport=udp;user=phone
09:30:23.644 [CM503025]: Call(12): Calling Ext:Ext.510@[Dev:sip:[email protected]:5070;transport=udp;user=phone]
09:30:23.624 [MS210004] C:12.2:Offer provided. Connection(proxy mode): 10.160.250.130:7038(7039)
09:30:23.523 [MS210000] C:12.1:Offer received. RTP connection: 31.45.162.116:4002(4003)
09:30:23.521 [CM503004]: Call(12): Route 1: Ext:Ext.510@[Dev:sip:[email protected]:5070;transport=udp;user=phone]
09:30:23.520 [CM503010]: Making route(s) to <sip:[email protected]>
09:30:23.520 Remote SDP is set for legC:12.1
09:30:23.520 [CM505001]: Ext.528: Device info: Device Identified: [Man: Counterpath;Mod: Bria;Rev: General] Capabilities:[reinvite, no-replaces, unable-no-sdp, recvonly] UserAgent: [Bria iOS 2.0.5] PBX contact: [sip:[email protected]:5060;transport=TCP]
09:30:23.517 [CM503001]: Call(12): Incoming call from Ext.528 to <sip:[email protected]>
09:30:23.512 [CM500002]: Info on incoming INVITE:
INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/TCP 31.45.162.116:52690;rport=52690;branch=z9hG4bKPjVqsEP7eRtwcACH1mYbuybTjXlN9ZtaS7;alias
Max-Forwards: 70
Contact: <sip:[email protected]:52690;transport=tcp>
To: <sip:[email protected]>
From: "528"<sip:[email protected]>;tag=SWHi2JUInoS69ufbD6.UKU8sAs5HNAV1
Call-ID: WK1v3MU3Bodz9p28SAodT0HT8qS-ZoDv
CSeq: 27330 INVITE
Session-Expires: 1800
Min-SE: 90
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS
Proxy-Authorization: Digest username="528",realm="3CXPhoneSystem",nonce="414d535c05c68b8e58:422ee3ac8b956cafd318b2be5a5d1477",uri="sip:[email protected]",response="9986760bed87eabe44cc3895e895e91f",algorithm=MD5
Supported: replaces, 100rel, timer, norefersub
User-Agent: Bria iOS 2.0.5
Content-Length: 0


89.201.x.x are our 3CX PBX


Please help.

Best regards.

 

[paul.hadley]

Re: Bria SIP software on Iphone and 3CX PBX - disconnect cal

Are you using "stun" on the 3CX Server.

Does the location of the 3CX server have a fixed IP address for its internet connection.

 

[miro]

Re: Bria SIP software on Iphone and 3CX PBX - disconnect cal

Hi,

we dont use stun ,our 3CX PBX is on fixed public IP address.

Best regards.

 

[paul.hadley]

Re: Bria SIP software on Iphone and 3CX PBX - disconnect cal

09:30:38.188 [CM503008]: Call(11): Call is terminated
09:30:38.184 [CM503021]: Call(11): ACK is not received

It may be that 3CX is sending the wrong IP to the soft phone and therefore not getting a response. Check these settings are all OK.

Settings Network Stun Server

Stun Server Off and Your Public IP entered as Contact & SDP

Settings Network Public IP

Static Public Address set a Your Public IP

Settings Advanced Advances

Allow Calls to External SIP Ticked

Local Sip Domain set to your Your Public IP

Settings Advanced Custom Parameters

SIPDOMAIN - Your Public IP

PBXPUBLICIP - Your Public IP

DEFAULTLOCALIP - Your Local IP

MSEXTERNALADDRESS - Your Public IP

CMEXTERNALADDRESS - Your Public IP

MSEXTERNALINTERFACE - Your Local IP

CMEXTERNALINTERFACE - Your Local IP

I have found its possible to get calls to work with the wrong settings in 3CX as a NAT router has changed some of these setting in the out going message. Also I remember reading some where on the forum of problems when changing from Stun to Fixed IP and back with entries in the Custom Parameters not being updated correctly.

Once you are happy with these settings restart 3CX and try it again to see is the "ACK is not received" is gone.

 

[mixig]

Re: Bria SIP software on Iphone and 3CX PBX - disconnect cal

Hi,

i had same issue with my router, i turn on sip helper and after that calls form outside via NAT working without any problems..

Regards...

 

[miro]

Re: Bria SIP software on Iphone and 3CX PBX - disconnect cal

Thank you mixig, i have tried your solution and it works.

Best regards.