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Automatically Dial Extension on Hook

Occasional Advisor

Automatically Dial Extension on Hook



Recently we've been rolling out UCS 5.5.1 for our VVXs and noticed that, even using the same dialplan, the behavior has changed for on-hook dialing. For instance, a VVX 400 was updated from UCS 4.0.6 to 5.5.1. Before, when the phone was on hook, I could put in an extension number and it would automatically dial the extension when the timeout was reached. Now, that doesn't happen, I have to push send or dial off hook to automatically send the call. Is this expected? I  have been playing with the dial plan to no avail. 





We use 3-digit extension numbers as such: 2xx

Message 1 of 3
Polycom Employee & Community Manager

Re: Automatically Dial Extension on Hook

Hello orderedchaos,

welcome back to the Polycom Community.

The community's VoIP FAQ contains this post here:

Oct 7, 2011 Question: Phone unable to Dial a number when Off Hook or on 2nd Call in a Conference or Digitmap issues

Resolution: Please check => here <=


The above FAQ also contains a troubleshooting section so you can verify what is being matched or not.


In addition UC Software 5.2.0 or later introduced:


  • This parameter specifies the time in seconds that the phone waits before dialing a number you enter while the phone is on hook. You can apply dialplan.userDial.timeOut only when its value is lower than up.IdleTimeOut.

Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

Polycom Global Services

Please be aware:

The purpose of these forums is to allow community members collaborate and help each other.
Questions posted here do not follow Polycom’s SLA guidelines.
If you require assistance from Polycom technical support, please open a
web service request or call us .

The above is necessary in order to track issue internally within Polycom.

You are welcome to post more questions or configuration or logs for other community members to look at but if your issue requires a fix via Polycom you must go via the official support structure.

Please ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's

Please remember, if you see a post that helped you , and it answers your question, please mark it as an "Accept as Solution".

This forum reply or post is based upon my personal experience and does not reflect the opinion or view of my employer.
Polycom employee participation within this community is not mandatory and any post or FAQ article provided by myself is done either during my working hours or outside working hours, in my private time, and may be answered on weekends, bank holidays or personal holidays.
Message 2 of 3
Occasional Advisor

Re: Automatically Dial Extension on Hook

Thanks Steffen, that was it. It was set to dialplan.userDial.timeOut="0" by default which meant it was disabled, the admin guide does not mentioned that. After changing it to a value above zero it is working. Appreciate it, thanks again!

Message 3 of 3