Use telephony with external PPPoE router

Question

Hallo, Entschuldigung, sprechen Sie Englisch? I was able to setup an external router (Cisco RV320) with a Zyxel Speedlink 5501 modem, by: #1 Set invalid PPPoE settings on the modem#2 Enabling PPPoE passthrough with VLAN 7 tagging#3 Using the PPPoE settings on the Cisco router: Username = 'Anschlusskennung + Zugangsnummer + # + Mitbenutzernummer + @wafel' But by doing this I cannot use the included telephony system anymore.  I searched for Speedlink 5501 transparent mode, but I couldn't find anything useful.  So I imagine some possibilities bellow, but I'm not finding answers. I also couldn't find much information about how this telephony system works. 1) Is it possible to use some other equipment to be able to use the telephony and an external router? How?2) Is it possible to use analog telephony, that works without the need of PPPoE? How?3) Is it possible to use just software? How? Could someone please help? Thanks in advance!

kraulekopf · Answer

You need a Portforwarding from the Cisco Router to the Speedlink 5501. the Port is the SIP Port 5060. with the Portforwarding you can use your Equipment.

albusen · Answer

Hi,I have simmilar config in my stores. Telekom Internet -> brigde modem -> router-firewall. I solved the IP telephony problem with aditional Cisco SPA 112 VoIP gate connected to LAN after my router-firewall. Works OK. Waiting for telephone connection can take like 20 seconds, but the sound is ok I guess. Best Regrads, Albusen

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