MTG2000 Trunk Gateway User Manual V| Dinstar
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Step3：Enter the PSTN Profile interface, click Modify to modify the default PSTN profile
and change the Codec group ID, or click Add to add a new PSTN profile.
Step4：Click OK to save the above configuration.
Step5：Enter the PSTN Group interface to establish a PSTN group
Step6：Enter the PSTN Group Management interface to associate the PSTN profile and
PSTN group to an E1/T1 port or multiple E1/T1 ports.
Step7：Click OK save the above configuration.
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