SIP terminal features

In conjunction with the Ayrix you will use telephones, more precisely SIP terminals to call or being called. Nowadays SIP terminals have many phone features to make call handling easier. Many functions of the Ayrix are combined with the SIP terminal. We give you a brief overview how to program function keys.

Attention: We describe the functions in general terms. The availability and use of function keys depend on the terminal manufacturer, type and model.

Probably your terminal is so feature rich, that it has much more as the Ayrix offers. We limit our description of these SIP terminal features to the most relevant to assist you to get these functions operational. For a detailed description check your manual and visit the manufacturers website for further explanation.

Function Keys #

Many terminals have function keys. We describe in general terms features that can be programmed under a function key.

  • Busy Lamp Field & Call Pickup
  • Day / Night BLF
  • DTMF Mode
  • Forward
  • Intercom button assignment
  • Line registration
  • Multiline /channel registration
  • Pool & Park + Orbit
  • Voicemail indicator


Busy Lamp Field & Call pickup. #

Depending on the telephone features a Busy Lamp Field (BLF) can be assigned. BLF is a lamp indicator of another ringing terminal. A call pickup is a 2nd function. A fixed Feature Code for call pickup is *8. On some terminals BLF and Call Pickup are combined, so that you can take over a call of a colleague with a single button.

Example BLF:

Example Pickup/BLF on SNOM715


Day / Night BLF button assignment #

Depending on the telephone features a Busy Lamp Field (BLF) can be assigned. A named extension is added due assignment, for example. “dnLamp_1”. That [name] is the reference at sip:[name]@IP_address_or_FQDN on BLF button assignment.

De-/activating by pressing the button switches the Day / Night lamp status at the webpage. The lamp switches from red to green. At the SIP terminal (SNOM715), the status change is announced and the lamp lights-up shortly on (de-) activation.

Example: Day/ Night assignment on the 2nd. (BLF) button on a SNOM715 Telephone set.



DTMF mode #

About the different Dual Tone Multiple Frequency (DTMF) modes we described already in the chapter Extension-Advanced Settings.

First you configure the correct mode to use the right DTMF mode.

*Notice: Whenever your choice of DTMF tape, In-In-band, RFC2833 or SIP_INFO element, both sites, Phone and PBX, need to accept that mode. Example: Basic settings of DTMF on a SNOM D315: Identity “Number” –> SIP –> DTMF via SIP INFO –> on –> Apply

DTMF Function Key: Second, it’s very handy, if you call a Contact Centre, that leads you through  an IVR call flow, by dialling DTMF digits, as is present in the Ayrix, (see chapter IVR) – to create a function key to enable/disable DTMF tone sending.


Forward Button #

One of the most wanted features: setting a forwarding, but which code? – A Follow-me button helps you, by pressing a function button, indicating that your incoming calls are being forwarded or not. You could also configure a Day/Night (Chapter 3.4.3) and use this as a “follow me” function.


Intercom button assignment #

If you want to user intercom on the Ayrix, the terminals must also support the intercom feature. Check your feature list of your telephones.


Example intercom receiving: SNOM 785, advanced configuration settings for intercom receiving.


Example:             line key settings for intercom sending.

Intercom:           setup or disconnect an intercom connection.

Push2Talk:        Establish the connection as long the Push2Talk key is pressed.


Line registration #

Generally, your phone subscription is registered on a single registrar. Ayrix might just the only registrar of your company. SIP phones are capable subscribe to multiple registrars. The Line registration button helps you to select the number to use.

For example: In a case where 2 users want to use the same terminal but have a different registration:


Multiline / Multi channel registration #

Common in the extension assignment is that you create a single subscription on a single line. On the Ayrix in the tab “Advanced settings” you can extend, “Maximum incoming lines” and/or “maximum simultaneous channels”. See chapter “Extensions -> Advanced settings”.


Voicemail indicator #

On the terminal you can enable voicemail indicators. If a new voicemail message has been recorded due your absence, there are two (“2”) indicators, to inform that you received a new message. MWI = Message-waiting Indicator

  1. By dial tone: lifting the handset, you get a shuttered dial tone on MWI. Intend for non-display extensions as analogue phones used with a SIP converter

  1. By a lamp indicator: A voicemail lamp can be programmed at the terminal to indicate the new message.

Example: SNOM 715, separate voicemail button/lamp. It lights up when new voicemail message is received.

Housekeeping: Using multiple registrations on your terminal results in a lamp update delay as the SIP message is sent due an interval of 15 minutes.


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