34 lines
1.3 KiB
SYSTEMD
34 lines
1.3 KiB
SYSTEMD
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# SPDX-License-Identifier: GPL-3.0-only
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# SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
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[Unit]
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Description=Userspace IMS/VoLTE daemon (SIP register + calls over the ims PDN)
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# needs the ims PDN (multiplexed netdev + global v6) — ims-pdn-up.sh
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# creates/connects the bearer through ModemManager and configures the netdev
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After=ModemManager.service network.target
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Wants=ModemManager.service
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[Service]
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Type=simple
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# bring up the ims PDN first; waits for modem + LTE attach, idempotent.
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# worst case ~4 min (modem wait + connect retries), hence TimeoutStartSec
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ExecStartPre=/usr/libexec/ims-pdn-up.sh
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TimeoutStartSec=600
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# /run/imsd.env: written by ims-pdn-up.sh (DEV= the connected ims netdev).
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# /etc/imsd.env: admin configuration — PCSCF= is REQUIRED (the carrier's
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# P-CSCF address; see the README's Configuration section) and wins over the
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# runtime-derived values.
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EnvironmentFile=-/run/imsd.env
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EnvironmentFile=-/etc/imsd.env
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# registration state (imsreg.state) + media stats live here
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StateDirectory=imsd
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ExecStart=/usr/bin/imsd
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# registration: resume an existing SA when possible (avoids fresh-SA
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# throttles); a failed bring-up exits nonzero and systemd retries
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Restart=on-failure
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RestartSec=120
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# SIGTERM: engine keeps the SA + registration state for the next resume
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KillMode=mixed
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TimeoutStopSec=10
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[Install]
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WantedBy=multi-user.target
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