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SIP blocked from foreign location

I am currently travelling and unable to register my freshphone SIP account from the a local Swedish ISP IP 83.209.126.48. Registration fails from all devices.


SIP Registration works fine from other Swedish ISP IPs e.g. Mobile works just fine, so either Freshphone has blacklisted the source IP or my particular swedish ISP is blocking all SIP traffic.


Please confirm if you are blocking foreign source IPs including : 83.209.126.48



Hi Andrew,


I hope you are well. Please can you try pinging sip1.freshdesk.co.za (41.221.5.251) from a PC connected to the same internet connection you are trying to register the softphone. 


Thank you. 

Ping works fine:


Sians-Air:~ sianremfry$ ping sip1.freshphone.co.za

PING sip1.freshphone.co.za (41.221.5.251): 56 data bytes

64 bytes from 41.221.5.251: icmp_seq=0 ttl=47 time=222.694 ms

64 bytes from 41.221.5.251: icmp_seq=1 ttl=47 time=265.603 ms

64 bytes from 41.221.5.251: icmp_seq=2 ttl=47 time=498.998 ms

64 bytes from 41.221.5.251: icmp_seq=3 ttl=47 time=305.393 ms

64 bytes from 41.221.5.251: icmp_seq=4 ttl=47 time=324.162 ms


As does Telnet:


Sians-Air:~ sianremfry$ telnet sip1.freshphone.co.za 5060

Trying 41.221.5.251...

Connected to sip1.freshphone.co.za.

Escape character is '^]'.




It looks like its registering now. Did you change/unblock something? Nothing changed on our side.

Hi Andrew


Nothing changed on our side. If you are able to ping our server, then we are not blocking that IP. We do block IP's when there are invalid credentials used to try and register a phone, this is done automatically with no human intervention

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