TE40 - Calls with H323 protocol not working.When receive a call with H323 protocol from the Cisco system, the incoming call screen opens on the TE40, when you answer the call is
Signalling a H.323 call
H.323 Protocol for Voice-over-IP Overview
Planet 2-Port H.323 / SIP VoIP Gateway, Part# PN-VIP-281 – Telecom Creations
H.323 - Wikipedia
Howto:What Ports are used for Signaling and Voice Traffic in SIP and H.323? - innovaphone-wiki
H.323 - Wikipedia
Port versus type information for H.323 | Download Table
Configuring H.323 (Examining VoIP Gateways and Gateway Control Protocols) Part 3
H.323 Features
H.323 ALG | Junos OS | Juniper Networks
H.323 Signaling Protocol Explained With Wireshark - Cisco Community
Supported Protocols for CBAC :: Chapter 9. Context-Based Access Control :: Part IV: Stateful and Advanced Filtering Technologies :: Router firewall security :: Networking :: eTutorials.org
Configuring H.323 (Examining VoIP Gateways and Gateway Control Protocols) Part 3
Technical troubleshoot: H323 slow start and fast start .. With Cisco IOS gateway configuration
H.323 vs SIP | Top 13 Differences to Learn With Infographics
Howto:What Ports are used for Signaling and Voice Traffic in SIP and H.323? - innovaphone-wiki
SIP and H.323 VoIP Signaling Overview - YouTube
FIREWALL SETUP AND NAT CONFIGURATION GUIDE FOR H.323 / SIP ROOM SYSTEMS – BLUEJEANS 2018
Avaya H.323 handset registration through a firewall | Simon Painter
Software Overview
H323 – VoiceTalks
SIP and H.323
H.323 ALG | Junos OS | Juniper Networks
Understanding H.323 Gatekeepers - Cisco
H323 analysis - TD-er's Wiki
