IP Telephony and Phones

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Hello, we have a sip server. SIP internal line has no problems. But unfortunately we couldn't get it to work on the outside line. A router was recommended for this. I don't know how to configure the router. I would like your support regarding this.Fi...

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Onurkan by Level 1
  • 430 Views
  • 1 replies
  • 0 Helpful votes

All, I am seeing an issue where I am unable to call 1 number in the PSTN with a SIP Trunk to an ITSP. All other calls work OK, just not this one. The ITSP told me to send g711alaw as 1st choice in the early offer and also to change the ptime with a S...

drbabbers by Level 3
  • 2883 Views
  • 4 replies
  • 0 Helpful votes

Hi all, so we have 7821/8865 MPP firmwares phones to be used with Zoom phone in Thailand . While we tested direct connection to the Internet and via the company network to the Zoom phone SIP exchange in Singapore, we are experiencing very high packet...

EYC by Level 1
  • 349 Views
  • 0 replies
  • 0 Helpful votes

I'm trying to remove/delete a fallback-dn in the VG450 Gateway. I was able to delete the DN manually within the CUCM, but when I view the stcapp supplementary-services, it's still being displayed. How do I remove/delete it from the stcapp supplementa...