503 Service Unavailable

[KOUSIS]

Hello
I'm trying to install the system and i can make calls between the extensions but not outside
I have the Grandstream 4104 and i followed everything in manual but when i'm calling i take this error

10:20:15.306 [CM503020]: Normal call termination. Reason: Server Failure
10:20:15.306 [CM503016]: Call(1): Attempt to reach <sip:[email protected]> failed. Reason: Server Failure
10:20:15.302 [CM503003]: Call(1): Call to sip:[email protected]:5060 has failed; Cause: 503 Service Unavailable; from IP:192.168.1.160:5060
10:20:15.207 [CM503025]: Call(1): Calling PSTNline:6936158137@(Ln.10000@Grandstream_GXW4104 )@[Dev:sip:[email protected]:5066]
10:20:15.195 [CM503003]: Call(1): Call to sip:[email protected]:5060 has failed; Cause: 503 Service Unavailable; from IP:192.168.1.160:5060
10:20:15.104 [CM503025]: Call(1): Calling PSTNline:6936158137@(Ln.10000@Grandstream_GXW4104 )@[Dev:sip:[email protected]:5064]
10:20:15.086 [CM503003]: Call(1): Call to sip:[email protected]:5060 has failed; Cause: 503 Service Unavailable; from IP:192.168.1.160:5060
10:20:14.990 [CM503025]: Call(1): Calling PSTNline:6936158137@(Ln.10000@Grandstream_GXW4104 )@[Dev:sip:[email protected]:5062]
10:20:14.977 [CM503003]: Call(1): Call to sip:[email protected]:5060 has failed; Cause: 503 Service Unavailable; from IP:192.168.1.160:5060
10:20:14.929 [CM503025]: Call(1): Calling PSTNline:6936158137@(Ln.10000@Grandstream_GXW4104 )@[Dev:sip:[email protected]:5060]
10:20:14.866 [CM503004]: Call(1): Route 1: PSTNline:6936158137@(Ln.10000@Grandstream_GXW4104 )@[Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5062,Dev:sip:[email protected]:5064,Dev:sip:[email protected]:5066]
10:20:14.840 [CM503010]: Making route(s) to <sip:[email protected]>
10:20:14.837 [CM505001]: Ext.203: Device info: Device Identified: [Man: Yealink;Mod: T20;Rev: General] Capabilities:[reinvite, no-replaces, unable-no-sdp, no-recvonly] UserAgent: [Yealink SIP-T20P 9.50.0.50] PBX contact: [sip:[email protected]:5060]
10:20:14.823 [CM503001]: Call(1): Incoming call from Ext.203 to <sip:[email protected]>
10:19:30.728 [CM504001]: Ext.203: new contact is registered. Contact(s): [sip:[email protected]:5062/203]

192.168.1.233 is the Phone
192.168.1.2 is the server
192.168.1.160 is the Grandstream
203 is the extension

Thank you

 

[mfm]

Hi,

This usually would indicate that the grandstream line is not plugged or is malfunctioning, please test this by connecting an analog phone to the line and make a call. If this works then.

1, Ensure grandstream is running the latest supproted firmware.
2. Factory reset the phone and set it up using the Config guide.