![QoS for IP PBX behind DOCSIS modem (SIP trunk without direct routing by ISP) - Network Engineering Stack Exchange QoS for IP PBX behind DOCSIS modem (SIP trunk without direct routing by ISP) - Network Engineering Stack Exchange](https://i.stack.imgur.com/BwoTu.png)
QoS for IP PBX behind DOCSIS modem (SIP trunk without direct routing by ISP) - Network Engineering Stack Exchange
![NEC PABX SIP Keyphone Package Set Supports 8 SIP Trunks + 32 SIP Extension License SL2100 SIP Package B Keyphone Package PABX / KEYPHONE SYSTEM Johor Bahru (JB), Kempas, Johor Jaya Supplier, NEC PABX SIP Keyphone Package Set Supports 8 SIP Trunks + 32 SIP Extension License SL2100 SIP Package B Keyphone Package PABX / KEYPHONE SYSTEM Johor Bahru (JB), Kempas, Johor Jaya Supplier,](https://www.aviosquare.com/image/avio/image/data/PABX/SL2100%20SIP%20Package%20B-NA.png)
NEC PABX SIP Keyphone Package Set Supports 8 SIP Trunks + 32 SIP Extension License SL2100 SIP Package B Keyphone Package PABX / KEYPHONE SYSTEM Johor Bahru (JB), Kempas, Johor Jaya Supplier,
![Enterprise Session Border Controller + Router with 2 Ethernet ports supports up to 200 SIP-to-SIP calls (up to 16 of which can be transcoded) | SmartNode SN5500 from Patton. Enterprise Session Border Controller + Router with 2 Ethernet ports supports up to 200 SIP-to-SIP calls (up to 16 of which can be transcoded) | SmartNode SN5500 from Patton.](https://www.patton.com/catimg/SN5500-app.png)