Questions tagged [voip]

For questions about Voice over Internet Protocol (VoIP) which encompasses various technologies (methods, functions, and encapsulations) for encoding and delivering audio on a network using IP.

9 questions with no upvoted or accepted answers
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Cisco phone display name change

I am trying to change name on cisco ip phone 7942. I changed the name in directory number configuration and in phone configuration of phone on CUCM. I did reset of phone too. But still showing the old ...
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1k views

Cisco 871, NAT, port formwarding and VOIP configuration - phone speaker buzz

I'm new to all Cisco stuff and I need to configure nettalk VOIP. I have Cisco 871 device with two ISP - one via PPP (public IP 666.666.666.666) and one via eth (public IP 999.999.999.999). Main ISP ...
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53 views

TCL Tool Command Language tclsh - Script for Cisco SPA508G Phone Sidecar Auto-attendant

Using Cisco SPA508G phones with SPA500S Sidecar Console. In the Cisco UI Sidecar programming is the script: fnc=blf+sd+cp;sub=108@$PROXY;nme=Steve J. I need both sub=108@$PROXY and sub=408@$PROXY ...
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51 views

QOS - the need for it and verifying it

Just some straightforward questions, hope gurus here can shed some light 1) show int - output queue -> this is the hardware queue (tx-ring) or this is the software queue ? if I see drop, this means ...
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70 views

Issue with voice performance between two ip phones at the same site connecting to two different CUCM?

I have one branch which is (branch-1) with two groups of ip phones, one group is connecting to CUCM-1 in HQ and the other group is connecting to CUCM-2 in the branch (branch-1) and the connectivity ...
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1answer
23 views

How to connect 2 SIP trunks to a PBX device which only has 1 SIP trunk port?

I stumbled upon a bit of an issue regarding SIP trunk here. In short, I am doing a PBX project for a company & this company leased 2 SIP trunks from the local telephone service provider. The ...
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0answers
11 views

Can I configure Voice VLAN on Huawei switches in access port mode?

The official documentation describes hybrid mode, but I see that in access mode, commands for configuring Voice VLAN are also available. Can I still configure Voice VLAN in access mode, has anyone ...
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19 views

Don't play music on hold for conferences

At my workplace we use Cisco video phones, CUCM, VCS, and MCU for conferences. Recently we have had some embarrassing situations where someone puts the conference on hold and everyone has to talk over ...
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5k views

RTP Port Number

Hi, In the screenshot UDP Source Port for RTP is 8000 and Destination Port is 40376. Standard port Numbers for RTP are 16384-32767. Even if we change the standard port range, should it not be min. ...