Force SRST on phone

Answered Question
Nov 25th, 2008
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have an access list blocking tcp port 2000 on a switchport to force the phone into srst mode. Voice GW is still under mgcp / cm control. Phone says "opening x.x.x.x" IP address of VGW. Has anyone ever done this

Correct Answer by Brandon Buffin about 8 years 5 months ago

Blocking port 2000 at the switchport means that SCCP traffic can also not get from the phone to the SRST gateway. You'll need to block SCCP across the WAN.


Brandon

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Correct Answer
Brandon Buffin Tue, 11/25/2008 - 06:56
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Blocking port 2000 at the switchport means that SCCP traffic can also not get from the phone to the SRST gateway. You'll need to block SCCP across the WAN.


Brandon

balitewiczp Tue, 11/25/2008 - 07:11
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Thanks for the info. I changed my access list to block only to destination address of cm's. now its registered to srst router. thx

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