XPR8300 phone patch

[arbitergvadam]

Hello,
So I am trying to get an XPR8300 enabled for phone patch operation
I wanted to see if anyone knows what pins to use and how to set it up in the software to do so.
I do have phone patch enabled
Thanks on advance!

 

[Firebuff880]

Phone Patch to what - You can't just plug a PSTN/Extension into the repeater.

 

[arbitergvadam]

Phone Patch to what - You can't just plug a PSTN/Extension into the repeater.

So what do you do?

 

[arbitergvadam]

So what do you do?

Phone patch to make a call via radio.

 

[Firebuff880]

So what do you do?

Well, I have an Asterisk box with a custom App-RPT extension and I use a DMK Eng URi adapter between the Repeater and the Asterisk box.
But this is an old build and I don't know if App-RPT is still maintained or capable with DADHI as my build still had ZapTEL.

Also, it's custom because we needed to modify the Dialing Commands to match MSI's requirements - See the details

2.16 Digital Phone Patch - R1.8 Vintage Janurary 2011.
MOTOTRBO Digital Phone Patch is a Motorola proprietary feature, and it supports the following 2 types of phone patch calls:
Individual Phone Patch Call
This allows half duplex voice communication between a radio user and a phone user. This type of call can be initiated from either end, that is, it can be initiated by the radio user or the phone user. Talkgroup Phone Patch Call
This allows half duplex voice communication between a phone user and a group of radio users (i.e. Talkgroup including All Call). This type of call can be initiated only from the phone user.
This feature is supported in Single Site/IP Site Connect (IPSC) Local Channels, IPSC Wide Area Channels (WAC), and Capacity Plus. This feature is supported in display and non-display subscribers. However, since the non-display model does not have keypad, its user can not type phone number, over dial, or access/de-access code manually; instead, these numbers need to be configured to programmable buttons.
This feature utilizes Commercial Off The Shelf (COTS) Analog Phone Patch (APP) boxes, and is compatible with any APP box that supports the 4-wire interface and can communicate in Half Duplex mode, for example, Zetron 30 (Worldpatch) and PL 1877A (MRTI2000). Most (if not all) APP boxes in the market support the following telephony services: Access and De-access Codes
o Used to wake up the APP box and prevent radio user or phone user from making un-authorized phone patch calls (Access Code)
o Used to terminate the phone patch call if access code is required when setting up the call (De-access code).
o Different access code/de-access code may be configured to have different privileges, so access/de-access code can be used to block/allow radio from performing call type (International, Long Distance, Toll, Local, 911, etc…) per radio access code. Phone Usage (Time Out Timer): the APP box will end the call once the timer expires Go ahead tone to the phone user when the radio user de-keys: this provides an indication to the phone user that he/she can starts to talk now. Connection to PSTN line directly (for example, POTS lines) or through PBX Type Approvals for Supported Countries

In all system configurations, the physical connection for Digital Phone Patch is the 4-wire interface between the repeater and APP box, which is identical to that of the Analog Phone Patch configuration. The physical connection is through the repeater’s GPIO connector, with the following pins:
• TX Audio - Input impedance (AC) of 39k ohms, Single-ended, Level adjustable
• RX Audio - Single-ended, Level adjustable
• PTT - 5v level GPIO
• COR - 5v level GPIO
• Ground