Skip to content
Skip to search
Skip to footer
Cisco.com Worldwide
Products and Services
Solutions
Support
Learn
Explore Cisco
How to Buy
Partners Home
Partner Program
Support
Tools
Find a Cisco Partner
Meet our Partners
Become a Cisco Partner
Support
Technology Support
Gateway Protocols
Troubleshooting TechNotes
View Documents by Topic
Choose a Topic
H.323
Media Gateway Control Protocol (MGCP)
Skinny Call Control Protocol (SCCP)
Voice over ATM (VoATM)
Voice over Frame Relay (VOFR)
H.323
Analog E&M Troubleshooting Guidelines (Cisco IOS Platforms)
02/Feb/2006
Analog E&M Voice Signaling Overview
02/Feb/2006
CDR Logging Configuration with Syslog Servers and Cisco IOS Gateways
24/Feb/2006
CUCM Call Distribution Mechanism in SIP/H323 Trunk
05/Jun/2018
Cisco IOS, Phone, UCM and CUC Packet, and PCM Captures Command Reference
08/Jun/2017
Defining Analog Voice
12/Feb/2007
E&M Cable Pinouts to Connect Cisco 1750/2600/3600 E&M VIC to Nortel PBX Option 11 E&M Trunk
02/Feb/2006
Fax Troubleshoot Guide - H.323
05/Feb/2015
Gateway to Gatekeeper (H.235) and Gatekeeper to Gatekeeper (IZCT) Security Troubleshooting Guide
20/Feb/2019
H.323 T.38 Fax Relay Issues
22/Aug/2007
Troubleshoot Music On Hold Failure When Gateway is Integrated Service Router 4431
04/Jan/2018
Troubleshooting ISDN Call Failures Originated from NetMeeting or Similar 3rd Party H.323 Devices
02/Feb/2006
Troubleshooting No Dial Tone Issues
02/Feb/2006
Troubleshooting No Ringback Tone on ISDN-VoIP (H.323) Calls
27/Nov/2005
Troubleshooting Unrecognized Voice Interface Cards on Cisco 1750, 1751, and 1760 Routers
02/Feb/2006
Understanding Cisco IOS Gatekeeper Call Routing
04/Jan/2007
Understanding Codecs: Complexity, Hardware Support, MOS, and Negotiation
02/Feb/2006
Understanding H.323 Gatekeepers
25/Sep/2014
Voice Design and Implementation Guide
02/Feb/2006
Waveform Coding Techniques
02/Feb/2006
Media Gateway Control Protocol (MGCP)
Cisco IOS, Phone, UCM and CUC Packet, and PCM Captures Command Reference
08/Jun/2017
Configure Q.SIG PRI Trunks between Call Manager and Avaya S8700/G650 with Unity Voice Mail Integration
20/Aug/2006
Configure and Troubleshoot MGCP Gateways
29/Aug/2023
FAX-MGCP Troubleshoot Guide
30/Jan/2015
PGW 2200 Softswitch Error Resolution for MGCP Hung Calls
02/Feb/2006
Understanding Codecs: Complexity, Hardware Support, MOS, and Negotiation
02/Feb/2006
Use VLT to Read and Interpret CUCM Traces
03/Mar/2015
Skinny Call Control Protocol (SCCP)
Fax Troubleshoot Guide
15/Jan/2015
Understanding Codecs: Complexity, Hardware Support, MOS, and Negotiation
02/Feb/2006
Voice over ATM (VoATM)
Troubleshooting Unrecognized Voice Interface Cards on Cisco 1750, 1751, and 1760 Routers
02/Feb/2006
Voice over Frame Relay (VOFR)
Troubleshooting Unrecognized Voice Interface Cards on Cisco 1750, 1751, and 1760 Routers
02/Feb/2006
Waveform Coding Techniques
02/Feb/2006
Configuring SRS Telephony and MGCP Fallback
12/Feb/2008
MGCP and H.323 Voice Gateway Protocol Comparison
04/Aug/2006
Support Documentation
All Support Documentation for this protocol