sundance-communications.com
Posted By: crazy canuck SV9100 with Allstream SIP Trunks - 08/09/22 08:43 PM
Has anyone interopted with Allstream sip trunks through an Adtran plus a local router?

we have 2 way audio on Outbound calls but 1 way audio (the NEC can not hear caller) on inbound calls.

any ideas will help.
Posted By: Coral Tech Re: SV9100 with Allstream SIP Trunks - 08/09/22 09:31 PM
NAT is messed up. SIP ALG must be off on the router as well.
© Business Phone System Forums