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SL2100 dropping calls
#636061 03/24/20 09:03 PM
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Having a problem, intermittent , with off site VoIP phones at different locations. Using SIP trunks, inbound call rings, go off hook and call is not there, receive a error tone. No problem at the host location. Any setting I can check in programming or a possible router issue at the switch side? Thanks

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Re: SL2100 dropping calls
teleco #636771 05/13/20 02:36 AM
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Originally Posted by teleco
Having a problem, intermittent , with off site VoIP phones at different locations. Using SIP trunks, inbound call rings, go off hook and call is not there, receive a error tone. No problem at the host location. Any setting I can check in programming or a possible router issue at the switch side? Thanks
change 15-05-47 & 48 for remote phones. Default should be 180. Try 90 if not 60. This worked for me.

Re: SL2100 dropping calls
teleco #636772 05/13/20 03:04 AM
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Are you using a POE ROUTER

Re: SL2100 dropping calls
teleco #636779 05/13/20 12:42 PM
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Changing 15-05-47 and 48 normally will fix this as sonnym suggested. However, best practice is to get the timer increased on the router/firewall causing this issue. For a few phones this is no biggie, bit deployments you are using bandwidth for no good reason.

Re: SL2100 dropping calls
teleco #636780 05/13/20 12:43 PM
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Changing 15-05-47 and 48 normally will fix this as sonnym suggested. However, best practice is to get the timer increased on the router/firewall causing this issue. For a few phones this is no biggie, big deployments you are using bandwidth for no good reason.

Re: SL2100 dropping calls
teleco #636994 06/01/20 11:50 AM
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So far so good, changed from 90 to 60. Thanks for the help.


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