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One Way Audio with MGCP Gateway - Cisco Community
https://community.cisco.com/t5/ip-telephony-and-phones/one-way-audio-with-mgcp-gateway/td-p/2632611
One Way Audio with MGCP Gateway. We got a problem with sporadic "one way audio" one mgcp connections to PSTN. Call flow: PSTN-->2811-->mgcp-->cucm-->CP7942-->CFWDall-->CP7942. or. PSTN-->2811-->mgcp-->cucm-->CP7942-->Pickup-->CP7942. or. PSTN-->2811-->mgcp-->cucm-->Huntpilot-->CP7942. If we got an direct call, everything works fine.
One way audio MGCP gateway - Cisco Community
https://community.cisco.com/t5/ip-telephony-and-phones/one-way-audio-mgcp-gateway/td-p/3676803
One way audio MGCP gateway; Announcements. 491. Views. 5. Helpful. 3. Replies. Mannu123. Beginner Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed; Permalink; Print; Email to a Friend; Report Inappropriate Content 07-28-2018 09:57 AM 07-28-2018 09:57 AM. One way audio MGCP gateway
MGCP GW "PRI Calls only" - One-Way Audio...along with MPLS ...
https://learningnetwork.cisco.com/s/question/0D53i00000Ksqoh/mgcp-gw-pri-calls-only-oneway-audioalong-with-mpls-link-upgrade
MGCP GW "PRI Calls only" - One-Way Audio...along with MPLS link upgrade. Hi, Please suggest what could be wrong in a situation, sharing below the behavior.... NOTE - ONE-WAY AUDIO ISSUE only with PRI CALLS.....ON-NET Calls always work properly over both MPLS links for inter-region and intra-region calls... Also to clarify, same MGCP Gateway (3925) registered with CUCM 9.1.2 …
Cisco Bug: CSCtv21900 - MGCP SRTP One Way Audio to Phone ...
https://quickview.cloudapps.cisco.com/quickview/bug/CSCtv21900
Symptoms: Intermittent one-way audio occurs from an MGCP gateway to a Cisco IP phone. Conditions: This symptom is observed under the following conditions: - Encrypted call with SRTP - MGCP Controlled Gateway - Cisco IOS Release 15.1 (4)M or later releases Phone logs show the following message: 6622: DBG 23:29:50.256330 DSP: RTP RX: srtp_unprotect () …
One Way Audio | The Packet
https://www.thepacket.net/audio/
Turns out that the lack of media and control bindings for MGCP was causing the one way audio issues when calls were placed over the PSTN. Unfortunately it took me a couple of days to determine the root cause of of this strange behavior. Originally I was focused on the codec’s that were being negotiated through the PSTN gateway.
VoIP Networks and One Way Audio - Global Knowledge
https://www.globalknowledge.com/us-en/resources/resource-library/articles/voip-networks-and-one-way-audio/
One-way voice can occur in Media Gateway Control Protocol (MGCP) gateways if the source interface for signaling and media packets is not specified. You can bind the MGCP media to the source interface if you issue the mgcp bind media source-interface interface-id command and then the mgcp bind control source-interface interface-id command.
CM to PSTN - One Way Audio - Cisco: Call Manager - Tek-Tips
https://www.tek-tips.com/viewthread.cfm?qid=1185007
I have a Cisco 2651 router with a NM-1V w/ a VIC-2FXO card. The router is configured and registered with the CallManager as a MGCP Gateway. I am able to make and receive calls, but there is only one way audio.
Solved: Cisco one way audio - Cisco Community
https://community.cisco.com/t5/ip-telephony-and-phones/cisco-one-way-audio/td-p/2277193
Hi, I have one way audio from PSTN to IP Phone. 1. From IP phone to IP phone its working 2. From IP phone to pstn line i can hear (outbound working) 3. PSTN phone to IP phone i am not able to hear. No voice is coming from that side (in bound not working from pstn to call gateway) Can some help.
Troubleshooting One Way Voice Issues
https://www.cisco.com/c/en/us/support/docs/voice/voice-quality/5219-fix-1way-voice.pdf
One−way voice can occur in Media Gateway Control Protocol (MGCP) gateways if the source interface for signaling and media packets is not specified. You can bind the MGCP media to the source interface if you issue the mgcp bind media source−interface interface−id command and then the mgcp bind control source−interface interface−id command.
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