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3510 IP PBX + 350 phone = line echo & delay

  • fistameeny
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17 May 2012 21:03 #72270 by fistameeny
I've setup a Draytek 3510 IP PBX with 10 VigorPhone 350 handsets. It's all connected through an unmanaged 48port gigabit switch - all structured cabling except patch leads are Cat6. Dhcp is handed out by a Linux server. All PC's and phones are on the same LAN, in the same subnet. Outgoing calls are made through 4 channels of ISDN2e, using th Draytek FXO ISDN card.

I've not setup an IP PBX before. Probably due to inexperience, I'm getting a lot of echo and delay on the phone lines. So, a few questions:


  • Should the phones be running through a different switch to the PC's?

  • Which codec should I be using to avoid echo and delays?

  • Are there any other best practices a novice IP PBX'er should follow?


Thanks for your help....

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21 Jan 2013 16:42 #74875 by sentosa
Hi
Have you solved the line echo problem?
Which firmware?
Regards
George

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